CVE-2023-4921

A use-after-free vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation.

When the plug qdisc is used as a class of the qfq qdisc, sending network packets triggers use-after-free in qfq_dequeue() due to the incorrect .peek handler of sch_plug and lack of error checking in agg_dequeue().

We recommend upgrading past commit 8fc134fee27f2263988ae38920bc03da416b03d8.

A use-after-free vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation. When the plug qdisc is used as a class of the qfq qdisc, sending network packets triggers use-after-free in qfq_dequeue() due to the incorrect .peek handler of sch_plug and lack of error checking in agg_dequeue(). We recommend upgrading past commit 8fc134fee27f2263988ae38920bc03da416b03d8.

The Linux Kernel, the operating system core itself.

Security Fix(es):

An issue was discovered in the Linux kernel through 6.0.9. drivers/media/usb/ttusb-dec/ttusb_dec.c has a memory leak because of the lack of a dvb_frontend_detach call.(CVE-2022-45887)

A division-by-zero error on some AMD processors can potentially return speculative data resulting in loss of confidentiality. 

(CVE-2023-20588)

In multiple functions of io_uring.c, there is a possible kernel memory corruption due to improper locking. This could lead to local escalation of privilege in the kernel with System execution privileges needed. User interaction is not needed for exploitation.

(CVE-2023-21400)

** REJECT ** CVE-2023-4881 was wrongly assigned to a bug that was deemed to be a non-security issue by the Linux kernel security team.(CVE-2023-4881)

A use-after-free vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation.

When the plug qdisc is used as a class of the qfq qdisc, sending network packets triggers use-after-free in qfq_dequeue() due to the incorrect .peek handler of sch_plug and lack of error checking in agg_dequeue().

We recommend upgrading past commit 8fc134fee27f2263988ae38920bc03da416b03d8.

(CVE-2023-4921)

The Linux Kernel, the operating system core itself.

Security Fix(es):

An issue was discovered in the Linux kernel through 6.0.9. drivers/media/usb/ttusb-dec/ttusb_dec.c has a memory leak because of the lack of a dvb_frontend_detach call.(CVE-2022-45887)

A division-by-zero error on some AMD processors can potentially return speculative data resulting in loss of confidentiality. 

(CVE-2023-20588)

In multiple functions of io_uring.c, there is a possible kernel memory corruption due to improper locking. This could lead to local escalation of privilege in the kernel with System execution privileges needed. User interaction is not needed for exploitation.

(CVE-2023-21400)

** REJECT ** CVE-2023-4881 was wrongly assigned to a bug that was deemed to be a non-security issue by the Linux kernel security team.(CVE-2023-4881)

A use-after-free vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation.

When the plug qdisc is used as a class of the qfq qdisc, sending network packets triggers use-after-free in qfq_dequeue() due to the incorrect .peek handler of sch_plug and lack of error checking in agg_dequeue().

We recommend upgrading past commit 8fc134fee27f2263988ae38920bc03da416b03d8.

(CVE-2023-4921)

The Linux Kernel, the operating system core itself.

Security Fix(es):

An issue was discovered in the Linux kernel through 6.0.9. drivers/media/usb/ttusb-dec/ttusb_dec.c has a memory leak because of the lack of a dvb_frontend_detach call.(CVE-2022-45887)

A division-by-zero error on some AMD processors can potentially return speculative data resulting in loss of confidentiality. 

(CVE-2023-20588)

In multiple functions of io_uring.c, there is a possible kernel memory corruption due to improper locking. This could lead to local escalation of privilege in the kernel with System execution privileges needed. User interaction is not needed for exploitation.

(CVE-2023-21400)

VUL-0: CVE-2023-32249: kernel: Linux Kernel ksmbd Multichannel Improper Authentication Session Hijack Vulnerability(CVE-2023-32249)

VUL-0: CVE-2023-32251: kernel: Linux Kernel ksmbd Improper Restriction of Excessive Authentication Attempts Protection Bypass Vulnerability(CVE-2023-32251)

VUL-0: CVE-2023-32253: kernel: Linux Kernel ksmbd Session Deadlock Denial-of-Service Vulnerability(CVE-2023-32253)

** REJECT ** CVE-2023-4881 was wrongly assigned to a bug that was deemed to be a non-security issue by the Linux kernel security team.(CVE-2023-4881)

A use-after-free vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation.

When the plug qdisc is used as a class of the qfq qdisc, sending network packets triggers use-after-free in qfq_dequeue() due to the incorrect .peek handler of sch_plug and lack of error checking in agg_dequeue().

We recommend upgrading past commit 8fc134fee27f2263988ae38920bc03da416b03d8.

(CVE-2023-4921)

The Linux Kernel, the operating system core itself.

Security Fix(es):

An issue was discovered in the Linux kernel through 6.0.9. drivers/media/usb/ttusb-dec/ttusb_dec.c has a memory leak because of the lack of a dvb_frontend_detach call.(CVE-2022-45887)

A division-by-zero error on some AMD processors can potentially return speculative data resulting in loss of confidentiality. 

(CVE-2023-20588)

In multiple functions of io_uring.c, there is a possible kernel memory corruption due to improper locking. This could lead to local escalation of privilege in the kernel with System execution privileges needed. User interaction is not needed for exploitation.

(CVE-2023-21400)

VUL-0: CVE-2023-32249: kernel: Linux Kernel ksmbd Multichannel Improper Authentication Session Hijack Vulnerability(CVE-2023-32249)

VUL-0: CVE-2023-32251: kernel: Linux Kernel ksmbd Improper Restriction of Excessive Authentication Attempts Protection Bypass Vulnerability(CVE-2023-32251)

VUL-0: CVE-2023-32253: kernel: Linux Kernel ksmbd Session Deadlock Denial-of-Service Vulnerability(CVE-2023-32253)

** REJECT ** CVE-2023-4881 was wrongly assigned to a bug that was deemed to be a non-security issue by the Linux kernel security team.(CVE-2023-4881)

A use-after-free vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation.

When the plug qdisc is used as a class of the qfq qdisc, sending network packets triggers use-after-free in qfq_dequeue() due to the incorrect .peek handler of sch_plug and lack of error checking in agg_dequeue().

We recommend upgrading past commit 8fc134fee27f2263988ae38920bc03da416b03d8.

(CVE-2023-4921)

The Linux Kernel, the operating system core itself.

Security Fix(es):

An issue was discovered in the Linux kernel through 6.0.9. drivers/media/usb/ttusb-dec/ttusb_dec.c has a memory leak because of the lack of a dvb_frontend_detach call.(CVE-2022-45887)

A division-by-zero error on some AMD processors can potentially return speculative data resulting in loss of confidentiality. 

(CVE-2023-20588)

In multiple functions of io_uring.c, there is a possible kernel memory corruption due to improper locking. This could lead to local escalation of privilege in the kernel with System execution privileges needed. User interaction is not needed for exploitation.

(CVE-2023-21400)

VUL-0: CVE-2023-32249: kernel: Linux Kernel ksmbd Multichannel Improper Authentication Session Hijack Vulnerability(CVE-2023-32249)

VUL-0: CVE-2023-32251: kernel: Linux Kernel ksmbd Improper Restriction of Excessive Authentication Attempts Protection Bypass Vulnerability(CVE-2023-32251)

VUL-0: CVE-2023-32253: kernel: Linux Kernel ksmbd Session Deadlock Denial-of-Service Vulnerability(CVE-2023-32253)

** REJECT ** CVE-2023-4881 was wrongly assigned to a bug that was deemed to be a non-security issue by the Linux kernel security team.(CVE-2023-4881)

A use-after-free vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation.

When the plug qdisc is used as a class of the qfq qdisc, sending network packets triggers use-after-free in qfq_dequeue() due to the incorrect .peek handler of sch_plug and lack of error checking in agg_dequeue().

We recommend upgrading past commit 8fc134fee27f2263988ae38920bc03da416b03d8.

(CVE-2023-4921)

A use-after-free vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation. When the plug qdisc is used as a class of the qfq qdisc, sending network packets triggers use-after-free in qfq_dequeue() due to the incorrect .peek handler of sch_plug and lack of error checking in agg_dequeue(). We recommend upgrading past commit 8fc134fee27f2263988ae38920bc03da416b03d8.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: net/sched: sch_hfsc UAF (CVE-2023-4623)
• kernel: use-after-free in sch_qfq network scheduler (CVE-2023-4921)
• kernel: inactive elements in nft_pipapo_walk (CVE-2023-6817)
• kernel: IGB driver inadequate buffer size for frames larger than MTU (CVE-2023-45871)
• kernel: ktls overwrites readonly memory pages when using function splice with a ktls socket as destination (CVE-2024-0646)
• kernel: nfp: use-after-free in area_cache_get() (CVE-2022-3545)
• kernel: null-ptr-deref vulnerabilities in sl_tx_timeout in drivers/net/slip (CVE-2022-41858)
• kernel: HID: check empty report_list in hid_validate_values() (CVE-2023-1073)
• kernel: Possible use-after-free since the two fdget() during vhost_net_set_backend() (CVE-2023-1838)
• kernel: NULL pointer dereference in can_rcv_filter (CVE-2023-2166)
• kernel: Slab-out-of-bound read in compare_netdev_and_ip (CVE-2023-2176)
• kernel: A heap out-of-bounds write when function perf_read_group is called and sibling_list is smaller than its child's sibling_list (CVE-2023-5717)
• kernel: NULL pointer dereference in nvmet_tcp_build_iovec (CVE-2023-6356)
• kernel: NULL pointer dereference in nvmet_tcp_execute_request (CVE-2023-6535)
• kernel: NULL pointer dereference in __nvmet_req_complete (CVE-2023-6536)
• kernel: Out-Of-Bounds Read vulnerability in smbCalcSize (CVE-2023-6606)
• kernel: OOB Access in smb2_dump_detail (CVE-2023-6610)
• kernel: use-after-free in l2cap_sock_release in net/bluetooth/l2cap_sock.c (CVE-2023-40283)
• kernel: SEV-ES local priv escalation (CVE-2023-46813)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

• CVE-url: https://ubuntu.com/security/CVE-2023-42753
  • netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c
• CVE-2022-40982 // CVE-url: https://ubuntu.com/security/CVE-2022-40982
  • init: Provide arch_cpu_finalize_init()
  • x86/cpu: Switch to arch_cpu_finalize_init()
  • init: Remove check_bugs() leftovers
  • x86/speculation: Add Gather Data Sampling mitigation
  • x86/speculation: Add force option to GDS mitigation
  • x86/speculation: Add Kconfig option for GDS
  • KVM: Add GDS_NO support to KVM
• CVE-url: https://ubuntu.com/security/CVE-2022-40982
  • vmlinux.lds.h: Create section for protection against instrumentation
  • x86/cpu: Move arch_smt_update() to a neutral place
• CVE-2023-20588 // CVE-url: https://ubuntu.com/security/CVE-2023-20588
  • x86/bugs: Increase the x86 bugs vector size to two u32s
  • x86/CPU/AMD: Do not leak quotient data after a division by 0
  • x86/CPU/AMD: Fix the DIV(0) initial fix attempt
• CVE-2023-3863 // CVE-url: https://ubuntu.com/security/CVE-2023-3863
  • nfc: llcp: simplify llcp_sock_connect() error paths
  • net: nfc: Fix use-after-free caused by nfc_llcp_find_local
• CVE-url: https://ubuntu.com/security/CVE-2023-3863
  • nfc: Fix to check for kmemdup failure
• CVE-url: https://ubuntu.com/security/CVE-2023-4921
  • net: sched: sch_qfq: Fix UAF in qfq_dequeue()
• Miscellaneous Ubuntu changes
  • [Config] CONFIG_GDS_FORCE_MITIGATION=n

• CVE-url: https://ubuntu.com/security/CVE-2023-42753
  • netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c
• CVE-2022-40982 // CVE-url: https://ubuntu.com/security/CVE-2022-40982
  • init: Provide arch_cpu_finalize_init()
  • x86/cpu: Switch to arch_cpu_finalize_init()
  • init: Remove check_bugs() leftovers
  • x86/speculation: Add Gather Data Sampling mitigation
  • x86/speculation: Add force option to GDS mitigation
  • x86/speculation: Add Kconfig option for GDS
  • KVM: Add GDS_NO support to KVM
• CVE-url: https://ubuntu.com/security/CVE-2022-40982
  • vmlinux.lds.h: Create section for protection against instrumentation
  • x86/cpu: Move arch_smt_update() to a neutral place
• CVE-2023-20588 // CVE-url: https://ubuntu.com/security/CVE-2023-20588
  • x86/bugs: Increase the x86 bugs vector size to two u32s
  • x86/CPU/AMD: Do not leak quotient data after a division by 0
  • x86/CPU/AMD: Fix the DIV(0) initial fix attempt
• CVE-2023-3863 // CVE-url: https://ubuntu.com/security/CVE-2023-3863
  • nfc: llcp: simplify llcp_sock_connect() error paths
  • net: nfc: Fix use-after-free caused by nfc_llcp_find_local
• CVE-url: https://ubuntu.com/security/CVE-2023-3863
  • nfc: Fix to check for kmemdup failure
• CVE-url: https://ubuntu.com/security/CVE-2023-4921
  • net: sched: sch_qfq: Fix UAF in qfq_dequeue()
• Miscellaneous Ubuntu changes
  • [Config] CONFIG_GDS_FORCE_MITIGATION=n

• CVE-url: https://ubuntu.com/security/CVE-2023-42753
  • netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c
• CVE-2022-40982 // CVE-url: https://ubuntu.com/security/CVE-2022-40982
  • init: Provide arch_cpu_finalize_init()
  • x86/cpu: Switch to arch_cpu_finalize_init()
  • init: Remove check_bugs() leftovers
  • x86/speculation: Add Gather Data Sampling mitigation
  • x86/speculation: Add force option to GDS mitigation
  • x86/speculation: Add Kconfig option for GDS
  • KVM: Add GDS_NO support to KVM
• CVE-url: https://ubuntu.com/security/CVE-2022-40982
  • x86/cpu: Move arch_smt_update() to a neutral place
• Bionic update: upstream stable patchset 2019-07-23 (LP: #1837664) // CVE- url: https://ubuntu.com/security/CVE-2022-40982
  • cpu/hotplug: Fix "SMT disabled by BIOS" detection for KVM
• Jammy update: v5.15.94 upstream stable release (LP: #2012673) // CVE-url: https://ubuntu.com/security/CVE-2022-40982
  • x86/speculation: Identify processors vulnerable to SMT RSB predictions
• CVE-2023-20588 // CVE-url: https://ubuntu.com/security/CVE-2023-20588
  • x86/bugs: Increase the x86 bugs vector size to two u32s
  • x86/CPU/AMD: Do not leak quotient data after a division by 0
  • x86/CPU/AMD: Fix the DIV(0) initial fix attempt
• CVE-2023-3863 // CVE-url: https://ubuntu.com/security/CVE-2023-3863
  • nfc: llcp: simplify llcp_sock_connect() error paths
  • net: nfc: Fix use-after-free caused by nfc_llcp_find_local
• Jammy update: v5.15.46 upstream stable release (LP: #1981864) // CVE-url: https://ubuntu.com/security/CVE-2023-4385
  • fs: jfs: fix possible NULL pointer dereference in dbFree()
• Jammy update: v5.15.42 upstream stable release (LP: #1981375) // CVE-url: https://ubuntu.com/security/CVE-2023-4459
  • net: vmxnet3: fix possible NULL pointer dereference in vmxnet3_rq_cleanup()
• CVE-url: https://ubuntu.com/security/CVE-2023-4921
  • net: sched: sch_qfq: Fix UAF in qfq_dequeue()
• Miscellaneous Ubuntu changes
  • [Config] CONFIG_GDS_FORCE_MITIGATION=n

• CVE-url: https://ubuntu.com/security/CVE-2023-42753
  • netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c
• CVE-2022-40982 // CVE-url: https://ubuntu.com/security/CVE-2022-40982
  • init: Provide arch_cpu_finalize_init()
  • x86/cpu: Switch to arch_cpu_finalize_init()
  • init: Remove check_bugs() leftovers
  • x86/speculation: Add Gather Data Sampling mitigation
  • x86/speculation: Add force option to GDS mitigation
  • x86/speculation: Add Kconfig option for GDS
  • KVM: Add GDS_NO support to KVM
• CVE-url: https://ubuntu.com/security/CVE-2022-40982
  • x86/cpu: Move arch_smt_update() to a neutral place
• Bionic update: upstream stable patchset 2019-07-23 (LP: #1837664) // CVE- url: https://ubuntu.com/security/CVE-2022-40982
  • cpu/hotplug: Fix "SMT disabled by BIOS" detection for KVM
• Jammy update: v5.15.94 upstream stable release (LP: #2012673) // CVE-url: https://ubuntu.com/security/CVE-2022-40982
  • x86/speculation: Identify processors vulnerable to SMT RSB predictions
• CVE-2023-20588 // CVE-url: https://ubuntu.com/security/CVE-2023-20588
  • x86/bugs: Increase the x86 bugs vector size to two u32s
  • x86/CPU/AMD: Do not leak quotient data after a division by 0
  • x86/CPU/AMD: Fix the DIV(0) initial fix attempt
• CVE-2023-3863 // CVE-url: https://ubuntu.com/security/CVE-2023-3863
  • nfc: llcp: simplify llcp_sock_connect() error paths
  • net: nfc: Fix use-after-free caused by nfc_llcp_find_local
• Jammy update: v5.15.46 upstream stable release (LP: #1981864) // CVE-url: https://ubuntu.com/security/CVE-2023-4385
  • fs: jfs: fix possible NULL pointer dereference in dbFree()
• Jammy update: v5.15.42 upstream stable release (LP: #1981375) // CVE-url: https://ubuntu.com/security/CVE-2023-4459
  • net: vmxnet3: fix possible NULL pointer dereference in vmxnet3_rq_cleanup()
• CVE-url: https://ubuntu.com/security/CVE-2023-4921
  • net: sched: sch_qfq: Fix UAF in qfq_dequeue()
• Miscellaneous Ubuntu changes
  • [Config] CONFIG_GDS_FORCE_MITIGATION=n

• net/tls: do not free tls_rec on async operation in bpf_exec_tx_verdict() {CVE-2023-6176}
• wifi: mac80211: fix MBSSID parsing use-after-free {CVE-2022-42719}
• mac80211: always allocate struct ieee802_11_elems {CVE-2022-42719}
• x86/sev: Check for user-space IOIO pointing to kernel space {CVE-2023-46813}
• x86/sev: Check IOBM for IOIO exceptions from user-space {CVE-2023-46813}
• x86/sev: Disable MMIO emulation from user mode {CVE-2023-46813}
• netfilter: nftables: exthdr: fix 4-byte stack OOB write {CVE-2023-4881}
• net: sched: sch_qfq: Fix UAF in qfq_dequeue() {CVE-2023-4921}
• netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c {CVE-2023-42753}
• net/sched: cls_tcindex: downgrade to imperfect hash {CVE-2023-1829}
• USB: ene_usb6250: Allocate enough memory for full object {CVE-2023-45862}
• igb: set max size RX buffer when store bad packet is enabled {CVE-2023-45871}
• net/sched: sch_hfsc: Ensure inner classes have fsc curve {CVE-2023-4623}
• Fix double fget() in vhost_net_set_backend() {CVE-2023-1838}
• nvmet-tcp: Fix a possible UAF in queue intialization setup {CVE-2023-5178}
• drm/qxl: fix UAF on handle creation {CVE-2023-39198}
• net: add kerneldoc comment for sk_peer_lock {CVE-2021-4203}
• af_unix: fix races in sk_peer_pid and sk_peer_cred accesses {CVE-2021-4203}
• block-map: add __GFP_ZERO flag for alloc_page in function bio_copy_kern {CVE-2022-0494}
• media: ov519: add missing endpoint sanity checks {CVE-2020-11608}
• act_mirred: use the backlog for nested calls to mirred ingress {CVE-2022-4269}
• net/sched: act_mirred: better wording on protection against excessive stack growth {CVE-2022-4269}
• inet: use bigger hash table for IP ID generation {CVE-2021-45486}
• net: revert "net: get rid of an signed integer overflow in ip_idents_reserve()" {CVE-2021-45486}

• net/tls: do not free tls_rec on async operation in bpf_exec_tx_verdict() {CVE-2023-6176}
• wifi: mac80211: fix MBSSID parsing use-after-free {CVE-2022-42719}
• mac80211: always allocate struct ieee802_11_elems {CVE-2022-42719}
• x86/sev: Check for user-space IOIO pointing to kernel space {CVE-2023-46813}
• x86/sev: Check IOBM for IOIO exceptions from user-space {CVE-2023-46813}
• x86/sev: Disable MMIO emulation from user mode {CVE-2023-46813}
• netfilter: nftables: exthdr: fix 4-byte stack OOB write {CVE-2023-4881}
• net: sched: sch_qfq: Fix UAF in qfq_dequeue() {CVE-2023-4921}
• netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c {CVE-2023-42753}
• net/sched: cls_tcindex: downgrade to imperfect hash {CVE-2023-1829}
• USB: ene_usb6250: Allocate enough memory for full object {CVE-2023-45862}
• igb: set max size RX buffer when store bad packet is enabled {CVE-2023-45871}
• net/sched: sch_hfsc: Ensure inner classes have fsc curve {CVE-2023-4623}
• Fix double fget() in vhost_net_set_backend() {CVE-2023-1838}
• nvmet-tcp: Fix a possible UAF in queue intialization setup {CVE-2023-5178}
• drm/qxl: fix UAF on handle creation {CVE-2023-39198}
• net: add kerneldoc comment for sk_peer_lock {CVE-2021-4203}
• af_unix: fix races in sk_peer_pid and sk_peer_cred accesses {CVE-2021-4203}
• block-map: add __GFP_ZERO flag for alloc_page in function bio_copy_kern {CVE-2022-0494}
• media: ov519: add missing endpoint sanity checks {CVE-2020-11608}
• act_mirred: use the backlog for nested calls to mirred ingress {CVE-2022-4269}
• net/sched: act_mirred: better wording on protection against excessive stack growth {CVE-2022-4269}
• inet: use bigger hash table for IP ID generation {CVE-2021-45486}
• net: revert "net: get rid of an signed integer overflow in ip_idents_reserve()" {CVE-2021-45486}

• drm/vmwgfx: Fix invalid reads in fence signaled events {CVE-2024-36960}
• af_unix: Fix garbage collector racing against connect() {CVE-2024-26923}
• ipv6: remove max_size check inline with ipv4 {CVE-2023-52340}
• aoe: fix the potential use-after-free problem in aoecmd_cfg_pkts {CVE-2023-6270}
• smb: client: fix use-after-free bug in cifs_debug_data_proc_show() {CVE-2023-52752}
• hdlc_ppp: add range checks in ppp_cp_parse_cr() {CVE-2020-25643}
• perf/core: Fix race in the perf_mmap_close() function {CVE-2020-14351}
• media: xirlink_cit: add missing descriptor sanity checks {CVE-2020-11668}
• vt: selection, close sel_buffer race {CVE-2020-8648}
• net: sched: sch_qfq: Fix UAF in qfq_dequeue() {CVE-2023-4921}
• media: pvrusb2: fix use after free on context disconnection {CVE-2023-52445}

• drm/vmwgfx: Fix invalid reads in fence signaled events {CVE-2024-36960}
• af_unix: Fix garbage collector racing against connect() {CVE-2024-26923}
• ipv6: remove max_size check inline with ipv4 {CVE-2023-52340}
• aoe: fix the potential use-after-free problem in aoecmd_cfg_pkts {CVE-2023-6270}
• smb: client: fix use-after-free bug in cifs_debug_data_proc_show() {CVE-2023-52752}
• hdlc_ppp: add range checks in ppp_cp_parse_cr() {CVE-2020-25643}
• perf/core: Fix race in the perf_mmap_close() function {CVE-2020-14351}
• media: xirlink_cit: add missing descriptor sanity checks {CVE-2020-11668}
• vt: selection, close sel_buffer race {CVE-2020-8648}
• net: sched: sch_qfq: Fix UAF in qfq_dequeue() {CVE-2023-4921}
• media: pvrusb2: fix use after free on context disconnection {CVE-2023-52445}

This kernel update is based on upstream 6.4.16 and fixes or adds mitigations for atleast the following security issues:

A flaw was found in the Linux Kernel. The tun/tap sockets have their socket UID hardcoded to 0 due to a type confusion in their initialization function. While it will be often correct, as tuntap devices require CAP_NET_ADMIN, it may not always be the case, e.g., a non-root user only having that capability. This would make tun/tap sockets being incorrectly treated in filtering/routing decisions, possibly bypassing network filters. CVE-2023-1076

A flaw was found in KVM AMD Secure Encrypted Virtualization (SEV) in the Linux kernel. A KVM guest using SEV-ES or SEV-SNP with multiple vCPUs can trigger a double fetch race condition vulnerability and invoke the VMGEXIT handler recursively. If an attacker manages to call the handler multiple times, they can trigger a stack overflow and cause a denial of service or potentially guest-to-host escape in kernel configurations without stack guard pages (CONFIG_VMAP_STACK). CVE-2023-4155

A use-after-free vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation. When the plug qdisc is used as a class of the qfq qdisc, sending network packets triggers use-after-free in qfq_dequeue() due to the incorrect .peek handler of sch_plug and lack of error checking in agg_dequeue(). We recommend upgrading past commit 8fc134fee27f2263988ae38920bc03da416b03d8. CVE-2023-4921

A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. Addition and removal of rules from chain bindings within the same transaction causes leads to use-after-free. We recommend upgrading past commit f15f29fd4779be8a418b66e9d52979bb6d6c2325. CVE-2023-5197

Improper access control in the Intel(R) Ethernet Controller RDMA driver for linux before version 1.9.30 may allow an unauthenticated user to potentially enable escalation of privilege via network access. CVE-2023-25775

A NULL pointer dereference flaw was found in the Linux kernel ipv4 stack. The socket buffer (skb) was assumed to be associated with a device before calling __ip_options_compile, which is not always the case if the skb is re-routed by ipvs. This issue may allow a local user with CAP_NET_ADMIN privileges to crash the system. CVE-2023-42754

A flaw was found in the Netfilter subsystem of the Linux kernel. A race condition between IPSET_CMD_ADD and IPSET_CMD_SWAP can lead to a kernel panic due to the invocation of __ip_set_put on a wrong set. This issue may allow a local user to crash the system. CVE-2023-42756

For other upstream fixes in this update, see the referenced changelogs.

This kernel-linus update is based on upstream 6.4.16 and fixes or adds mitigations for atleast the following security issues:

A flaw was found in the Linux Kernel. The tun/tap sockets have their socket UID hardcoded to 0 due to a type confusion in their initialization function. While it will be often correct, as tuntap devices require CAP_NET_ADMIN, it may not always be the case, e.g., a non-root user only having that capability. This would make tun/tap sockets being incorrectly treated in filtering/routing decisions, possibly bypassing network filters. CVE-2023-1076

A flaw was found in KVM AMD Secure Encrypted Virtualization (SEV) in the Linux kernel. A KVM guest using SEV-ES or SEV-SNP with multiple vCPUs can trigger a double fetch race condition vulnerability and invoke the VMGEXIT handler recursively. If an attacker manages to call the handler multiple times, they can trigger a stack overflow and cause a denial of service or potentially guest-to-host escape in kernel configurations without stack guard pages (CONFIG_VMAP_STACK). CVE-2023-4155

A use-after-free vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation. When the plug qdisc is used as a class of the qfq qdisc, sending network packets triggers use-after-free in qfq_dequeue() due to the incorrect .peek handler of sch_plug and lack of error checking in agg_dequeue(). We recommend upgrading past commit 8fc134fee27f2263988ae38920bc03da416b03d8. CVE-2023-4921

A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. Addition and removal of rules from chain bindings within the same transaction causes leads to use-after-free. We recommend upgrading past commit f15f29fd4779be8a418b66e9d52979bb6d6c2325. CVE-2023-5197

Improper access control in the Intel(R) Ethernet Controller RDMA driver for linux before version 1.9.30 may allow an unauthenticated user to potentially enable escalation of privilege via network access. CVE-2023-25775

A NULL pointer dereference flaw was found in the Linux kernel ipv4 stack. The socket buffer (skb) was assumed to be associated with a device before calling __ip_options_compile, which is not always the case if the skb is re-routed by ipvs. This issue may allow a local user with CAP_NET_ADMIN privileges to crash the system. CVE-2023-42754

A flaw was found in the Netfilter subsystem of the Linux kernel. A race condition between IPSET_CMD_ADD and IPSET_CMD_SWAP can lead to a kernel panic due to the invocation of __ip_set_put on a wrong set. This issue may allow a local user to crash the system. CVE-2023-42756

For other upstream fixes in this update, see the referenced changelogs.

The SUSE Linux Enterprise 15 SP2 kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2023-4389: Fixed a reference counting issue in the Btrfs filesystem that could be exploited in order to leak internal kernel information or crash the system (bsc#1214351).
• CVE-2023-42753: Fixed an array indexing vulnerability in the netfilter subsystem. This issue may have allowed a local user to crash the system or potentially escalate their privileges (bsc#1215150).
• CVE-2023-1206: Fixed a hash collision flaw in the IPv6 connection lookup table which could be exploited by network adjacent attackers, increasing CPU usage by 95% (bsc#1212703).
• CVE-2023-4921: Fixed a use-after-free vulnerability in the QFQ network scheduler which could be exploited to achieve local privilege escalatio (bsc#1215275).
• CVE-2023-23454: Fixed a type-confusion in the CBQ network scheduler (bsc#1207036).
• CVE-2023-4622: Fixed a use-after-free vulnerability in the Unix domain sockets component which could be exploited to achieve local privilege escalation (bsc#1215117).
• CVE-2023-4623: Fixed a use-after-free issue in the HFSC network scheduler which could be exploited to achieve local privilege escalation (bsc#1215115).
• CVE-2020-36766: Fixed a potential information leak in in the CEC driver (bsc#1215299).
• CVE-2023-1859: Fixed a use-after-free flaw in Xen transport for 9pfs which could be exploited to crash the system (bsc#1210169).
• CVE-2023-2177: Fixed a null pointer dereference issue in the sctp network protocol which could allow a user to crash the system (bsc#1210643).
• CVE-2023-4881: Fixed an out-of-bounds write flaw in the netfilter subsystem that could lead to information disclosure or denial of service (bsc#1215221).
• CVE-2023-40283: Fixed a use-after-free issue in the Bluetooth subsystem (bsc#1214233).
• CVE-2023-1192: Fixed a use-after-free in the CIFS subsystem (bsc#1208995).

The following non-security bugs were fixed:

• check-for-config-changes: ignore BUILTIN_RETURN_ADDRESS_STRIPS_PAC (bsc#1214380).
• mkspec: Allow unsupported KMPs (bsc#1214386)
• rpm/mkspec-dtb: support for nested subdirs.
• x86/srso: Do not probe microcode in a guest (git-fixes).
• x86/srso: Fix SBPB enablement for spec_rstack_overflow=off (git-fixes).
• x86/srso: Fix srso_show_state() side effect (git-fixes).
• x86/srso: Set CPUID feature bits independently of bug or mitigation status (git-fixes).

The SUSE Linux Enterprise 12 SP5 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2023-39192: Fixed an out of bounds read in the netfilter (bsc#1215858).
• CVE-2023-39193: Fixed an out of bounds read in the xtables subsystem (bsc#1215860).
• CVE-2023-39194: Fixed an out of bounds read in the XFRM subsystem (bsc#1215861).
• CVE-2023-42754: Fixed a NULL pointer dereference in the IPv4 stack that could lead to denial of service (bsc#1215467).
• CVE-2023-1206: Fixed a hash collision flaw in the IPv6 connection lookup table which could be exploited by network adjacent attackers, increasing CPU usage by 95% (bsc#1212703).
• CVE-2023-4921: Fixed a use-after-free vulnerability in the QFQ network scheduler which could be exploited to achieve local privilege escalation (bsc#1215275).
• CVE-2023-0394: Fixed a NULL pointer dereference in the IPv6 stack that could lead to denial of service (bsc#1207168).
• CVE-2023-4622: Fixed a use-after-free vulnerability in the Unix domain sockets component which could be exploited to achieve local privilege escalation (bsc#1215117).
• CVE-2023-4623: Fixed a use-after-free issue in the HFSC network scheduler which could be exploited to achieve local privilege escalation (bsc#1215115).
• CVE-2020-36766: Fixed a potential information leak in in the CEC driver (bsc#1215299).
• CVE-2023-1859: Fixed a use-after-free flaw in Xen transport for 9pfs which could be exploited to crash the system (bsc#1210169).
• CVE-2023-4881: Fixed a out-of-bounds write flaw in the netfilter subsystem that could lead to potential information disclosure or a denial of service (bsc#1215221).
• CVE-2023-1192: Fixed use-after-free in cifs_demultiplex_thread() (bsc#1208995).

The following non-security bugs were fixed:

• 9p/trans_virtio: Remove sysfs file on probe failure (git-fixes).
• Drivers: hv: vmbus: Do not dereference ACPI root object handle (git-fixes).
• Input: psmouse - fix OOB access in Elantech protocol (git-fixes).
• Input: raspberrypi-ts - fix refcount leak in rpi_ts_probe (git-fixes).
• Input: xpad - add constants for GIP interface numbers (git-fixes).
• Input: xpad - delete a Razer DeathAdder mouse VID/PID entry (git-fixes).
• KVM: s390: vsie: Fix the initialization of the epoch extension (epdx) field (git-fixes bsc#1215897).
• KVM: s390: vsie: fix the length of APCB bitmap (git-fixes bsc#1215898).
• NFS/pNFS: Report EINVAL errors from connect() to the server (git-fixes).
• NFSv4/pnfs: minor fix for cleanup path in nfs4_get_device_info (git-fixes).
• README: update rebuilding information (jsc#PED-5021).
• USB: serial: option: add FOXCONN T99W368/T99W373 product (git-fixes).
• USB: serial: option: add Quectel EM05G variant (0x030e) (git-fixes).
• VSOCK: handle VIRTIO_VSOCK_OP_CREDIT_REQUEST (git-fixes).
• arm64: insn: Fix ldadd instruction encoding (git-fixes)
• arm64: kgdb: Set PSTATE.SS to 1 to re-enable single-step (git-fixes)
• blacklist.conf: workqueue: compiler warning on 32-bit systems with Clang (bsc#1215877)
• blk-mq: Add blk_mq_delay_run_hw_queues() API call (bsc#1214586).
• blk-mq: In blk_mq_dispatch_rq_list() 'no budget' is a reason to kick (bsc#1214586).
• blk-mq: Rerun dispatching in the case of budget contention (bsc#1214586).
• btrfs: output extra debug info on failure (bsc#1215136).
• config: do not incorrectly set CONFIG_BUILTIN_RETURN_ADDRESS_STRIPS_PAC (bsc#1214380).
• direct-io: allow direct writes to empty inodes (bsc#1215164).
• drm/ast: Fix DRAM init on AST2200 (bsc#1152446)
• drm/client: Fix memory leak in drm_client_target_cloned (bsc#1152446).
• drm/client: Send hotplug event after registering a client (bsc#1152446).
• drm/virtio: Fix GEM handle creation UAF (git-fixes).
• drm/virtio: fix NULL pointer dereference in virtio_gpu_conn_get_modes (git-fixes).
• ext4: avoid deadlock in fs reclaim with page writeback (bsc#1213016).
• ext4: correct inline offset when handling xattrs in inode body (bsc#1214950).
• ext4: fix wrong unit use…

The SUSE Linux Enterprise 12 SP5 Azure kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2023-39194: Fixed a flaw in the processing of state filters which could allow a local attackers to disclose sensitive information. (bsc#1215861)
• CVE-2023-39193: Fixed a flaw in the processing of state filters which could allow a local attackers to disclose sensitive information. (bsc#1215860)
• CVE-2023-39192: Fixed a flaw in the u32_match_it function which could allow a local attackers to disclose sensitive information. (bsc#1215858)
• CVE-2023-42754: Fixed a null pointer dereference in ipv4_link_failure which could lead an authenticated attacker to trigger a DoS. (bsc#1215467)
• CVE-2023-1206: Fixed a hash collision flaw in the IPv6 connection lookup table. A user located in the local network or with a high bandwidth connection can increase the CPU usage of the server that accepts IPV6 connections up to 95% (bsc#1212703).
• CVE-2023-4921: Fixed a use-after-free vulnerability in the QFQ network scheduler which could be exploited to achieve local privilege escalatio (bsc#1215275).
• CVE-2023-4622: Fixed a use-after-free vulnerability in the Unix domain sockets component which could be exploited to achieve local privilege escalation (bsc#1215117).
• CVE-2023-4623: Fixed a use-after-free issue in the HFSC network scheduler which could be exploited to achieve local privilege escalation (bsc#1215115).
• CVE-2020-36766: Fixed a potential information leak in in the CEC driver (bsc#1215299).
• CVE-2023-1859: Fixed a use-after-free flaw in Xen transport for 9pfs which could be exploited to crash the system (bsc#1210169).
• CVE-2023-4881: Fixed a out-of-bounds write flaw in the netfilter subsystem that could lead to potential information disclosure or a denial of service (bsc#1215221).
• CVE-2023-1192: Fixed use-after-free in cifs_demultiplex_thread() (bsc#1208995).

The following non-security bugs were fixed:

• 9p/trans_virtio: Remove sysfs file on probe failure (git-fixes).
• arm64: insn: Fix ldadd instruction encoding (git-fixes)
• arm64: kgdb: Set PSTATE.SS to 1 to re-enable single-step (git-fixes)
• blk-mq: Add blk_mq_delay_run_hw_queues() API call (bsc#1214586).
• blk-mq: In blk_mq_dispatch_rq_list() 'no budget' is a reason to kick (bsc#1214586).
• blk-mq: Rerun dispatching in the case of budget contention (bsc#1214586).
• check-for-config-changes: ignore BUILTIN_RETURN_ADDRESS_STRIPS_PAC (bsc#1214380). gcc7 on SLE 15 does not support this while later gcc does.
• direct-io: allow direct writes to empty inodes (bsc#1215164).
• Drivers: hv: vmbus: Do not dereference ACPI root object handle (git-fixes).
• drm/ast: Fix DRAM init on AST2200 (bsc#1152446)
• drm/client: Fix memory leak in drm_client_target_cloned (bsc#1152446) Backporting changes: * move changes to drm_fb_helper.c * context changes
• drm/client: Send hotplug event after registering a client (bsc#1152446) Backporting changes: * send hotplug event from drm_client_add() * remove drm_dbg_kms()
• drm/virtio: Fix GEM handle creation UAF (git-fixes).
• drm/virtio: fix NULL pointer dereference in virtio_gpu_conn_get_modes (git-fixes).
• ext4: avoid deadlock in fs reclaim with page writeback (bsc#1213016).
• ext4: correct inline offset when handling xattrs in inode body (bsc#1214950).
• ext4: fix wrong unit use in ext4_mb_clear_bb (bsc#1214943).
• ext4: set goal start correctly in ext4_mb_normalize_request (bsc#1214940).
• fbcon: Fix null-ptr-deref in soft_cursor (bsc#1154048)
• fbdev: au1200fb: Fix missing IRQ check in au1200fb_drv_probe (bsc#1154048)
• fbdev: imxfb: warn about invalid left/right margin (bsc#1154048)
• fbdev: modedb: Add 1920x1080 at 60 Hz video mode (bsc#1154048)
• fbdev: omapfb: lcd_mipid: Fix an error handling path in (bsc#1154048)
• firmware: raspberrypi: fix possible memory leak in rpi_firmware_probe() (git-fixes).
• firmware: raspberrypi: Introduce devm_rpi_firmware_get() (git-fixes).
• firmware:…

The SUSE Linux Enterprise 12 SP5 RT kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2023-39194: Fixed an out of bounds read in the XFRM subsystem (bsc#1215861).
• CVE-2023-39193: Fixed an out of bounds read in the xtables subsystem (bsc#1215860).
• CVE-2023-39192: Fixed an out of bounds read in the netfilter subsystem (bsc#1215858).
• CVE-2023-42754: Fixed a NULL pointer dereference in the IPv4 stack that could lead to denial of service (bsc#1215467).
• CVE-2023-1206: Fixed a hash collision flaw in the IPv6 connection lookup table which could be exploited by network adjacent attackers, increasing CPU usage by 95% (bsc#1212703).
• CVE-2023-4921: Fixed a use-after-free vulnerability in the QFQ network scheduler which could be exploited to achieve local privilege escalatio (bsc#1215275).
• CVE-2023-4622: Fixed a use-after-free vulnerability in the Unix domain sockets component which could be exploited to achieve local privilege escalation (bsc#1215117).
• CVE-2023-4623: Fixed a use-after-free issue in the HFSC network scheduler which could be exploited to achieve local privilege escalation (bsc#1215115).
• CVE-2020-36766: Fixed a potential information leak in in the CEC driver (bsc#1215299).
• CVE-2023-1859: Fixed a use-after-free flaw in Xen transport for 9pfs which could be exploited to crash the system (bsc#1210169).
• CVE-2023-4881: Fixed a out-of-bounds write flaw in the netfilter subsystem that could lead to potential information disclosure or a denial of service (bsc#1215221).
• CVE-2023-1192: Fixed use-after-free in cifs_demultiplex_thread() (bsc#1208995).

The following non-security bugs were fixed:

• 9p/trans_virtio: Remove sysfs file on probe failure (git-fixes).
• Drivers: hv: vmbus: Do not dereference ACPI root object handle (git-fixes).
• Input: psmouse - fix OOB access in Elantech protocol (git-fixes).
• Input: raspberrypi-ts - fix refcount leak in rpi_ts_probe (git-fixes).
• Input: xpad - add constants for GIP interface numbers (git-fixes).
• Input: xpad - delete a Razer DeathAdder mouse VID/PID entry (git-fixes).
• KVM: s390: vsie: Fix the initialization of the epoch extension (epdx) field (git-fixes bsc#1215897).
• KVM: s390: vsie: fix the length of APCB bitmap (git-fixes bsc#1215898).
• NFS/pNFS: Report EINVAL errors from connect() to the server (git-fixes).
• NFSv4/pnfs: minor fix for cleanup path in nfs4_get_device_info (git-fixes).
• USB: serial: option: add FOXCONN T99W368/T99W373 product (git-fixes).
• USB: serial: option: add Quectel EM05G variant (0x030e) (git-fixes).
• VSOCK: handle VIRTIO_VSOCK_OP_CREDIT_REQUEST (git-fixes).
• arm64: insn: Fix ldadd instruction encoding (git-fixes)
• arm64: kgdb: Set PSTATE.SS to 1 to re-enable single-step (git-fixes)
• blacklist.conf: workqueue: compiler warning on 32-bit systems with Clang (bsc#1215877)
• blk-mq: Add blk_mq_delay_run_hw_queues() API call (bsc#1214586).
• blk-mq: In blk_mq_dispatch_rq_list() 'no budget' is a reason to kick (bsc#1214586).
• blk-mq: Rerun dispatching in the case of budget contention (bsc#1214586).
• btrfs: output extra information on failure (bsc#1215136).
• check-for-config-changes: ignore BUILTIN_RETURN_ADDRESS_STRIPS_PAC (bsc#1214380)
• direct-io: allow direct writes to empty inodes (bsc#1215164).
• drm/ast: Fix DRAM init on AST2200 (bsc#1152446)
• drm/client: Fix memory leak in drm_client_target_cloned (bsc#1152446) Backporting changes: * move changes to drm_fb_helper.c * context changes
• drm/client: Send hotplug event after registering a client (bsc#1152446) Backporting changes: * send hotplug event from drm_client_add() * remove drm_dbg_kms()
• drm/virtio: Fix GEM handle creation UAF (git-fixes).
• drm/virtio: fix NULL pointer dereference in virtio_gpu_conn_get_modes (git-fixes).
• ext4: avoid deadlock in fs reclaim with page writeback (bsc#1213016).
• ext4: correct inline offset when handling xattrs in inode body (bsc#1214950).
• ext4: fix wrong unit use in…

The SUSE Linux Enterprise 15 SP5 RT kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2023-39194: Fixed an out of bounds read in the XFRM subsystem (bsc#1215861).
• CVE-2023-39193: Fixed an out of bounds read in the xtables subsystem (bsc#1215860).
• CVE-2023-39192: Fixed an out of bounds read in the netfilter (bsc#1215858).
• CVE-2023-42754: Fixed a NULL pointer dereference in the IPv4 stack that could lead to denial of service (bsc#1215467).
• CVE-2023-4389: Fixed a reference counting issue in the Btrfs filesystem that could be exploited in order to leak internal kernel information or crash the system (bsc#1214351).
• CVE-2023-5345: fixed an use-after-free vulnerability in the fs/smb/client component which could be exploited to achieve local privilege escalation. (bsc#1215899)
• CVE-2023-42753: Fixed an array indexing vulnerability in the netfilter subsystem. This issue may have allowed a local user to crash the system or potentially escalate their privileges (bsc#1215150).
• CVE-2023-1206: Fixed a hash collision flaw in the IPv6 connection lookup table. A user located in the local network or with a high bandwidth connection can increase the CPU usage of the server that accepts IPV6 connections up to 95% (bsc#1212703).
• CVE-2023-4921: Fixed a use-after-free vulnerability in the QFQ network scheduler which could be exploited to achieve local privilege escalatio (bsc#1215275).
• CVE-2023-4622: Fixed a use-after-free vulnerability in the Unix domain sockets component which could be exploited to achieve local privilege escalation (bsc#1215117).
• CVE-2023-4623: Fixed a use-after-free issue in the HFSC network scheduler which could be exploited to achieve local privilege escalation (bsc#1215115).
• CVE-2023-4155: Fixed a flaw in KVM AMD Secure Encrypted Virtualization (SEV). An attacker can trigger a stack overflow and cause a denial of service or potentially guest-to-host escape in kernel configurations without stack guard pages. (bsc#1214022)

The following non-security bugs were fixed:

• ALSA: hda/realtek: Splitting the UX3402 into two separate models (git-fixes).
• arm64: module-plts: inline linux/moduleloader.h (git-fixes)
• arm64: module: Use module_init_layout_section() to spot init sections (git-fixes)
• arm64: sdei: abort running SDEI handlers during crash (git-fixes)
• arm64: tegra: Update AHUB clock parent and rate (git-fixes)
• arm64/fpsimd: Only provide the length to cpufeature for xCR registers (git-fixes)
• ASoC: amd: yc: Fix non-functional mic on Lenovo 82QF and 82UG (git-fixes).
• ASoC: hdaudio.c: Add missing check for devm_kstrdup (git-fixes).
• ASoC: imx-audmix: Fix return error with devm_clk_get() (git-fixes).
• ASoC: meson: spdifin: start hw on dai probe (git-fixes).
• ASoC: rt5640: Fix IRQ not being free-ed for HDA jack detect mode (git-fixes).
• ASoC: rt5640: Fix sleep in atomic context (git-fixes).
• ASoC: rt5640: Revert 'Fix sleep in atomic context' (git-fixes).
• ASoC: soc-utils: Export snd_soc_dai_is_dummy() symbol (git-fixes).
• ASoC: SOF: core: Only call sof_ops_free() on remove if the probe was successful (git-fixes).
• ASoC: tegra: Fix redundant PLLA and PLLA_OUT0 updates (git-fixes).
• blk-iocost: fix divide by 0 error in calc_lcoefs() (bsc#1214986).
• blk-iocost: use spin_lock_irqsave in adjust_inuse_and_calc_cost (bsc#1214992).
• block/mq-deadline: use correct way to throttling write requests (bsc#1214993).
• bnx2x: new flag for track HW resource allocation (bsc#1202845 bsc#1215322).
• clocksource: hyper-v: Mark hyperv tsc page unencrypted in sev-snp enlightened guest (bsc#1206453).
• drivers: hv: Mark percpu hvcall input arg page unencrypted in SEV-SNP enlightened guest (bsc#1206453).
• Drivers: hv: vmbus: Bring the post_msg_page back for TDX VMs with the paravisor (bsc#1206453).
• Drivers: hv: vmbus: Support >64 VPs for a fully enlightened TDX/SNP VM (bsc#1206453).
• Drivers: hv: vmbus: Support fully enlightened TDX guests…

The SUSE Linux Enterprise 15 SP4 Azure kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2023-4563: Fixed an use-after-free flaw in the nftables sub-component. This vulnerability could allow a local attacker to crash the system or lead to a kernel information leak problem. (bsc#1214727)
• CVE-2023-39194: Fixed a flaw in the processing of state filters which could allow a local attackers to disclose sensitive information. (bsc#1215861)
• CVE-2023-39193: Fixed a flaw in the processing of state filters which could allow a local attackers to disclose sensitive information. (bsc#1215860)
• CVE-2023-39192: Fixed a flaw in the u32_match_it function which could allow a local attackers to disclose sensitive information. (bsc#1215858)
• CVE-2023-42754: Fixed a null pointer dereference in ipv4_link_failure which could lead an authenticated attacker to trigger a DoS. (bsc#1215467)
• CVE-2023-5345: fixed an use-after-free vulnerability in the fs/smb/client component which could be exploited to achieve local privilege escalation. (bsc#1215899)
• CVE-2023-4155: Fixed a flaw in KVM AMD Secure Encrypted Virtualization (SEV). An attacker can trigger a stack overflow and cause a denial of service or potentially guest-to-host escape in kernel configurations without stack guard pages. (bsc#1214022)
• CVE-2023-4389: Fixed a reference counting issue in the Btrfs filesystem that could be exploited in order to leak internal kernel information or crash the system (bsc#1214351).
• CVE-2023-42753: Fixed an array indexing vulnerability in the netfilter subsystem. This issue may have allowed a local user to crash the system or potentially escalate their privileges (bsc#1215150).
• CVE-2023-1206: Fixed a hash collision flaw in the IPv6 connection lookup table. A user located in the local network or with a high bandwidth connection can increase the CPU usage of the server that accepts IPV6 connections up to 95% (bsc#1212703).
• CVE-2023-4921: Fixed a use-after-free vulnerability in the QFQ network scheduler which could be exploited to achieve local privilege escalatio (bsc#1215275).
• CVE-2023-37453: Fixed oversight in SuperSpeed initialization (bsc#1213123).
• CVE-2023-4622: Fixed a use-after-free vulnerability in the Unix domain sockets component which could be exploited to achieve local privilege escalation (bsc#1215117).
• CVE-2023-4623: Fixed a use-after-free issue in the HFSC network scheduler which could be exploited to achieve local privilege escalation (bsc#1215115).
• CVE-2023-1859: Fixed a use-after-free flaw in Xen transport for 9pfs which could be exploited to crash the system (bsc#1210169).
• CVE-2023-4881: Fixed a out-of-bounds write flaw in the netfilter subsystem that could lead to potential information disclosure or a denial of service (bsc#1215221).
• CVE-2023-2177: Fixed a null pointer dereference issue in the sctp network protocol which could allow a user to crash the system (bsc#1210643).
• CVE-2023-1192: Fixed use-after-free in cifs_demultiplex_thread() (bsc#1208995).

The following non-security bugs were fixed:

• ALSA: hda/cirrus: Fix broken audio on hardware with two CS42L42 codecs (git-fixes).
• ALSA: hda/realtek: Splitting the UX3402 into two separate models (git-fixes).
• ARM: pxa: remove use of symbol_get() (git-fixes).
• arm64: csum: Fix OoB access in IP checksum code for negative lengths (git-fixes).
• arm64: module-plts: inline linux/moduleloader.h (git-fixes)
• arm64: module: Use module_init_layout_section() to spot init sections (git-fixes)
• arm64: sdei: abort running SDEI handlers during crash (git-fixes)
• arm64: tegra: Update AHUB clock parent and rate (git-fixes)
• arm64/fpsimd: Only provide the length to cpufeature for xCR registers (git-fixes)
• ASoC: imx-audmix: Fix return error with devm_clk_get() (git-fixes).
• ASoC: meson: spdifin: start hw on dai probe (git-fixes).
• ASoC: soc-utils: Export snd_soc_dai_is_dummy() symbol (git-fixes).
• ASoC: tegra: Fix…

The SUSE Linux Enterprise 15 SP5 Azure kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2023-39192: Fixed an out of bounds read in the netfilter (bsc#1215858).
• CVE-2023-39193: Fixed an out of bounds read in the xtables subsystem (bsc#1215860).
• CVE-2023-39194: Fixed an out of bounds read in the XFRM subsystem (bsc#1215861).
• CVE-2023-42754: Fixed a NULL pointer dereference in the IPv4 stack that could lead to denial of service (bsc#1215467).
• CVE-2023-4389: Fixed a reference counting issue in the Btrfs filesystem that could be exploited in order to leak internal kernel information or crash the system (bsc#1214351).
• CVE-2023-5345: fixed an use-after-free vulnerability in the fs/smb/client component which could be exploited to achieve local privilege escalation (bsc#1215899).
• CVE-2023-42753: Fixed an array indexing vulnerability in the netfilter subsystem. This issue may have allowed a local user to crash the system or potentially escalate their privileges (bsc#1215150).
• CVE-2023-1206: Fixed a hash collision flaw in the IPv6 connection lookup table which could be exploited by network adjacent attackers, increasing CPU usage by 95% (bsc#1212703).
• CVE-2023-4921: Fixed a use-after-free vulnerability in the QFQ network scheduler which could be exploited to achieve local privilege escalatio (bsc#1215275).
• CVE-2023-37453: Fixed oversight in SuperSpeed initialization (bsc#1213123).
• CVE-2023-4622: Fixed a use-after-free vulnerability in the Unix domain sockets component which could be exploited to achieve local privilege escalation (bsc#1215117).
• CVE-2023-4623: Fixed a use-after-free issue in the HFSC network scheduler which could be exploited to achieve local privilege escalation (bsc#1215115).
• CVE-2023-4155: Fixed a flaw in KVM AMD Secure Encrypted Virtualization (SEV). An attacker can trigger a stack overflow and cause a denial of service or potentially guest-to-host escape in kernel configurations without stack guard pages (bsc#1214022).
• CVE-2023-1859: Fixed a use-after-free flaw in Xen transport for 9pfs which could be exploited to crash the system (bsc#1210169).
• CVE-2023-4881: Fixed a out-of-bounds write flaw in the netfilter subsystem that could lead to potential information disclosure or a denial of service (bsc#1215221).
• CVE-2023-2177: Fixed a null pointer dereference issue in the sctp network protocol which could allow a user to crash the system (bsc#1210643).
• CVE-2023-40283: Fixed use-after-free in l2cap_sock_ready_cb (bsc#1214233).
• CVE-2023-1192: Fixed use-after-free in cifs_demultiplex_thread() (bsc#1208995).

The following non-security bugs were fixed:

• ALSA: hda/cirrus: Fix broken audio on hardware with two CS42L42 codecs (git-fixes).
• ALSA: hda/realtek: Splitting the UX3402 into two separate models (git-fixes).
• ARM: pxa: remove use of symbol_get() (git-fixes).
• ASoC: SOF: core: Only call sof_ops_free() on remove if the probe was successful (git-fixes).
• ASoC: amd: yc: Fix non-functional mic on Lenovo 82QF and 82UG (git-fixes).
• ASoC: hdaudio.c: Add missing check for devm_kstrdup (git-fixes).
• ASoC: imx-audmix: Fix return error with devm_clk_get() (git-fixes).
• ASoC: meson: spdifin: start hw on dai probe (git-fixes).
• ASoC: rt5640: Fix IRQ not being free-ed for HDA jack detect mode (git-fixes).
• ASoC: rt5640: Fix sleep in atomic context (git-fixes).
• ASoC: rt5640: Revert 'Fix sleep in atomic context' (git-fixes).
• ASoC: soc-utils: Export snd_soc_dai_is_dummy() symbol (git-fixes).
• ASoC: tegra: Fix redundant PLLA and PLLA_OUT0 updates (git-fixes).
• Bluetooth: btsdio: fix use after free bug in btsdio_remove due to race condition (git-fixes).
• Drivers: hv: vmbus: Bring the post_msg_page back for TDX VMs with the paravisor (bsc#1206453).
• Drivers: hv: vmbus: Support >64 VPs for a fully enlightened TDX/SNP VM (bsc#1206453).
• Drivers: hv: vmbus: Support fully enlightened TDX guests (bsc#1206453).
• Drop amdgpu patch…

The SUSE Linux Enterprise 15 SP5 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2023-39194: Fixed a flaw in the processing of state filters which could allow a local attackers to disclose sensitive information. (bsc#1215861)
• CVE-2023-39193: Fixed a flaw in the processing of state filters which could allow a local attackers to disclose sensitive information. (bsc#1215860)
• CVE-2023-39192: Fixed a flaw in the u32_match_it function which could allow a local attackers to disclose sensitive information. (bsc#1215858)
• CVE-2023-42754: Fixed a null pointer dereference in ipv4_link_failure which could lead an authenticated attacker to trigger a DoS. (bsc#1215467)
• CVE-2023-5345: fixed an use-after-free vulnerability in the fs/smb/client component which could be exploited to achieve local privilege escalation. (bsc#1215899)
• CVE-2023-4155: Fixed a flaw in KVM AMD Secure Encrypted Virtualization (SEV). An attacker can trigger a stack overflow and cause a denial of service or potentially guest-to-host escape in kernel configurations without stack guard pages. (bsc#1214022)
• CVE-2023-4389: Fixed a reference counting issue in the Btrfs filesystem that could be exploited in order to leak internal kernel information or crash the system (bsc#1214351).
• CVE-2023-42753: Fixed an array indexing vulnerability in the netfilter subsystem. This issue may have allowed a local user to crash the system or potentially escalate their privileges (bsc#1215150).
• CVE-2023-1206: Fixed a hash collision flaw in the IPv6 connection lookup table. A user located in the local network or with a high bandwidth connection can increase the CPU usage of the server that accepts IPV6 connections up to 95% (bsc#1212703).
• CVE-2023-4921: Fixed a use-after-free vulnerability in the QFQ network scheduler which could be exploited to achieve local privilege escalatio (bsc#1215275).
• CVE-2023-4622: Fixed a use-after-free vulnerability in the Unix domain sockets component which could be exploited to achieve local privilege escalation (bsc#1215117).
• CVE-2023-4623: Fixed a use-after-free issue in the HFSC network scheduler which could be exploited to achieve local privilege escalation (bsc#1215115).
• CVE-2023-1859: Fixed a use-after-free flaw in Xen transport for 9pfs which could be exploited to crash the system (bsc#1210169).
• CVE-2023-4881: Fixed a out-of-bounds write flaw in the netfilter subsystem that could lead to potential information disclosure or a denial of service (bsc#1215221).
• CVE-2023-2177: Fixed a null pointer dereference issue in the sctp network protocol which could allow a user to crash the system (bsc#1210643).
• CVE-2023-1192: Fixed use-after-free in cifs_demultiplex_thread() (bsc#1208995).

The following non-security bugs were fixed:

• ALSA: hda/cirrus: Fix broken audio on hardware with two CS42L42 codecs (git-fixes).
• ALSA: hda/realtek: Splitting the UX3402 into two separate models (git-fixes).
• ARM: pxa: remove use of symbol_get() (git-fixes).
• arm64: csum: Fix OoB access in IP checksum code for negative lengths (git-fixes).
• arm64: module-plts: inline linux/moduleloader.h (git-fixes)
• arm64: module: Use module_init_layout_section() to spot init sections (git-fixes)
• arm64: sdei: abort running SDEI handlers during crash (git-fixes)
• arm64: tegra: Update AHUB clock parent and rate (git-fixes)
• arm64/fpsimd: Only provide the length to cpufeature for xCR registers (git-fixes)
• arm64/hyperv: Use CPUHP_AP_HYPERV_ONLINE state to fix CPU online sequencing (bsc#1206453).
• ASoC: amd: yc: Fix non-functional mic on Lenovo 82QF and 82UG (git-fixes).
• ASoC: hdaudio.c: Add missing check for devm_kstrdup (git-fixes).
• ASoC: imx-audmix: Fix return error with devm_clk_get() (git-fixes).
• ASoC: meson: spdifin: start hw on dai probe (git-fixes).
• ASoC: rt5640: Fix IRQ not being free-ed for HDA jack detect mode (git-fixes).
• ASoC: rt5640: Fix sleep in atomic context (git-fixes). -…