CVE-2019-18675

The Linux kernel through 5.3.13 has a start_offset+size Integer Overflow in cpia2_remap_buffer in drivers/media/usb/cpia2/cpia2_core.c because cpia2 has its own mmap implementation. This allows local users (with /dev/video0 access) to obtain read and write permissions on kernel physical pages, which can possibly result in a privilege escalation.

• usb: free iso schedules on failed submit {CVE-2026-64348}
• udf: validate VAT header length against the VAT inode size {CVE-2026-64323}
• USB: idmouse: fix use-after-free on disconnect race {CVE-2026-64344}
• USB: ldusb: fix use-after-free on disconnect race {CVE-2026-64343}
• USB: iowarrior: fix use-after-free on disconnect race {CVE-2026-64341}
• USB: iowarrior: fix use-after-free on disconnect {CVE-2026-64342}
• can: bcm: restore op->flags assignment lost in the bcm_tx_lock backport {CVE-2025-38004}
• can: bcm: fix out-of-bounds frame read introduced by the bcm_tx_lock backport {CVE-2025-38004}
• dm-log: fix a bitset_size overflow on 32bit machines {CVE-2026-72105}
• scsi: aic94xx: fix use-after-free in device removal path {CVE-2025-71075}
• dm log: fix out-of-bounds write due to region_count overflow {CVE-2026-53059}
• netfilter: xt_policy: fix strict mode inbound policy matching {CVE-2026-52920}
• phonet: pep: fix use-after-free in pep_get_sb() {CVE-2026-68144}
• ipv4: raw: reject IP_HDRINCL packets with ihl < 5 {CVE-2026-64114}
• Input: touchwin - reset the packet index on every complete packet {CVE-2026-64271}
• IB/mad: Drop unmatched RMPP responses before reassembly {CVE-2026-68425}
• wifi: ipw2100: fix potential memory leak in ipw2100_pci_init_one() {CVE-2026-68413}
• Bluetooth: RFCOMM: Fix session UAF in set_termios {CVE-2026-68188}
• sctp: fix auth_hmacs array size in struct sctp_cookie {CVE-2026-68376}
• net: slip: serialize receive against buffer reallocation {CVE-2026-68143}
• pppoe: reload header pointer after dev_hard_header() {CVE-2026-68121}
• Bluetooth: RFCOMM: validate skb length in rfcomm_recv_frame {CVE-2026-53254}
• net: af_key: zero aligned sockaddr tail in PF_KEY exports {CVE-2026-43088}
• netfilter: nf_conntrack_sip: don't use simple_strtoul {CVE-2026-52986}
• tcp: fix potential race in tcp_v6_syn_recv_sock() {CVE-2026-43198}
• netfilter: ctnetlink: ensure safe access to master conntrack {CVE-2026-43116}
• scsi: iscsi_tcp: Fix UAF during login when accessing the shost ipaddress {CVE-2023-52974}
• Bluetooth: RFCOMM: hold listener socket in rfcomm_connect_ind() {CVE-2026-53256}
• Bluetooth: bnep: reject short frames before parsing {CVE-2026-53253}
• Bluetooth: SCO: Fix use-after-free in sco_recv_frame() {CVE-2026-31408}
• ext4: fix e4b bitmap inconsistency reports {CVE-2026-45942}
• RDMA/srp: bound SRP_RSP sense copy by the received length {CVE-2026-53186}
• inet: RAW sockets using IPPROTO_RAW MUST drop incoming ICMP {CVE-2026-46266}
• nfsd: fix heap overflow in NFSv4.0 LOCK replay cache {CVE-2026-31402}
• ipv6: mcast: Fix use-after-free when processing MLD queries {CVE-2026-53275}
• netfilter: nfnetlink_osf: fix potential NULL dereference in ttl check {CVE-2026-52998}
• RDMA/umad: Reject negative data_len in ib_umad_write() {CVE-2026-23243}
• can: bcm: Fix UAF in bcm_proc_show() {CVE-2023-52922}
• netfilter: xt_tcpmss: check remaining length before reading option length {CVE-2026-43190}
• netfilter: nf_conntrack_h323: check for zero length in DecodeQ931() {CVE-2026-23455}
• netfilter: nf_conntrack_irc: fix possible out-of-bounds read {CVE-2026-53268}
• scsi: libfc: Fix use after free in fc_exch_abts_resp() {CVE-2022-49114}
• drm/radeon: fix potential buffer overflow in ni_set_mc_special_registers() {CVE-2022-50185}
• wifi: libertas: fix use-after-free in lbs_free_adapter() {CVE-2026-23281}
• ALSA: usb-audio: Fix an OOB bug in parse_audio_mixer_unit {CVE-2019-15117}
• vfs: introduce FMODE_UNSIGNED_OFFSET for allowing negative f_pos {CVE-2019-18675}
• infiniband: fix a possible use-after-free bug {CVE-2018-14734}
• phonet: pep: fix use-after-free in pep_get_sb() {CVE-2026-68144}
• Bluetooth: RFCOMM: validate skb length in MCC handlers {CVE-2026-53254}
• Bluetooth: SCO: Fix use-after-free in sco_recv_frame() due to missing sock_hold {CVE-2026-31408}
• xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete {CVE-2026-46116}
• netfilter: require Ethernet MAC header before using eth_hdr()…

• usb: free iso schedules on failed submit {CVE-2026-64348}
• udf: validate VAT header length against the VAT inode size {CVE-2026-64323}
• USB: idmouse: fix use-after-free on disconnect race {CVE-2026-64344}
• USB: ldusb: fix use-after-free on disconnect race {CVE-2026-64343}
• USB: iowarrior: fix use-after-free on disconnect race {CVE-2026-64341}
• USB: iowarrior: fix use-after-free on disconnect {CVE-2026-64342}
• can: bcm: restore op->flags assignment lost in the bcm_tx_lock backport {CVE-2025-38004}
• can: bcm: fix out-of-bounds frame read introduced by the bcm_tx_lock backport {CVE-2025-38004}
• dm-log: fix a bitset_size overflow on 32bit machines {CVE-2026-72105}
• scsi: aic94xx: fix use-after-free in device removal path {CVE-2025-71075}
• dm log: fix out-of-bounds write due to region_count overflow {CVE-2026-53059}
• netfilter: xt_policy: fix strict mode inbound policy matching {CVE-2026-52920}
• phonet: pep: fix use-after-free in pep_get_sb() {CVE-2026-68144}
• ipv4: raw: reject IP_HDRINCL packets with ihl < 5 {CVE-2026-64114}
• Input: touchwin - reset the packet index on every complete packet {CVE-2026-64271}
• IB/mad: Drop unmatched RMPP responses before reassembly {CVE-2026-68425}
• wifi: ipw2100: fix potential memory leak in ipw2100_pci_init_one() {CVE-2026-68413}
• Bluetooth: RFCOMM: Fix session UAF in set_termios {CVE-2026-68188}
• sctp: fix auth_hmacs array size in struct sctp_cookie {CVE-2026-68376}
• net: slip: serialize receive against buffer reallocation {CVE-2026-68143}
• pppoe: reload header pointer after dev_hard_header() {CVE-2026-68121}
• Bluetooth: RFCOMM: validate skb length in rfcomm_recv_frame {CVE-2026-53254}
• net: af_key: zero aligned sockaddr tail in PF_KEY exports {CVE-2026-43088}
• netfilter: nf_conntrack_sip: don't use simple_strtoul {CVE-2026-52986}
• tcp: fix potential race in tcp_v6_syn_recv_sock() {CVE-2026-43198}
• netfilter: ctnetlink: ensure safe access to master conntrack {CVE-2026-43116}
• scsi: iscsi_tcp: Fix UAF during login when accessing the shost ipaddress {CVE-2023-52974}
• Bluetooth: RFCOMM: hold listener socket in rfcomm_connect_ind() {CVE-2026-53256}
• Bluetooth: bnep: reject short frames before parsing {CVE-2026-53253}
• Bluetooth: SCO: Fix use-after-free in sco_recv_frame() {CVE-2026-31408}
• ext4: fix e4b bitmap inconsistency reports {CVE-2026-45942}
• RDMA/srp: bound SRP_RSP sense copy by the received length {CVE-2026-53186}
• inet: RAW sockets using IPPROTO_RAW MUST drop incoming ICMP {CVE-2026-46266}
• nfsd: fix heap overflow in NFSv4.0 LOCK replay cache {CVE-2026-31402}
• ipv6: mcast: Fix use-after-free when processing MLD queries {CVE-2026-53275}
• netfilter: nfnetlink_osf: fix potential NULL dereference in ttl check {CVE-2026-52998}
• RDMA/umad: Reject negative data_len in ib_umad_write() {CVE-2026-23243}
• can: bcm: Fix UAF in bcm_proc_show() {CVE-2023-52922}
• netfilter: xt_tcpmss: check remaining length before reading option length {CVE-2026-43190}
• netfilter: nf_conntrack_h323: check for zero length in DecodeQ931() {CVE-2026-23455}
• netfilter: nf_conntrack_irc: fix possible out-of-bounds read {CVE-2026-53268}
• scsi: libfc: Fix use after free in fc_exch_abts_resp() {CVE-2022-49114}
• drm/radeon: fix potential buffer overflow in ni_set_mc_special_registers() {CVE-2022-50185}
• wifi: libertas: fix use-after-free in lbs_free_adapter() {CVE-2026-23281}
• ALSA: usb-audio: Fix an OOB bug in parse_audio_mixer_unit {CVE-2019-15117}
• vfs: introduce FMODE_UNSIGNED_OFFSET for allowing negative f_pos {CVE-2019-18675}
• infiniband: fix a possible use-after-free bug {CVE-2018-14734}
• phonet: pep: fix use-after-free in pep_get_sb() {CVE-2026-68144}
• Bluetooth: RFCOMM: validate skb length in MCC handlers {CVE-2026-53254}
• Bluetooth: SCO: Fix use-after-free in sco_recv_frame() due to missing sock_hold {CVE-2026-31408}
• xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete {CVE-2026-46116}
• netfilter: require Ethernet MAC header before using eth_hdr()…

• sctp: fix err_chunk memory leaks in INIT handling {CVE-2026-72413}
• ACPICA: Fix use-after-free in acpi_ds_terminate_control_method() {CVE-2026-97455}
• ACPICA: Enhance buffer validation in acpi_ut_walk_aml_resources() {CVE-2026-97445}
• Bluetooth: L2CAP: validate connectionless PSM length {CVE-2026-97408}
• wifi: libipw: fix key index receive bound checks {CVE-2026-93803}
• netfilter: nf_conntrack_sip: fix OOB read in sip_skip_whitespace() {CVE-2026-98077}
• configfs: unhash the dentry before dropping the item in rmdir {CVE-2026-97949}
• reboot: fix cad_pid use-after-free race {CVE-2026-97938}
• ALSA: us122l: Prevent write upgrades for read mappings {CVE-2026-97931}
• net: usb: pegasus: don't rely on id table pointer arithmetic {CVE-2026-97540}
• usb: xusbatm: don't rely on id table pointer arithmetic {CVE-2026-97539}
• scsi: qla2xxx: Fix use-after-free of qpair work on queue teardown {CVE-2026-97536}
• xfrm: hold net_device reference under RCU in bundle creation {CVE-2026-98364}
• wifi: libipw: reject too-short beacon and probe responses {CVE-2026-98349}
• wifi: libipw: reject too-short association responses {CVE-2026-98348}
• net: lock the socket in sock_gettstamp() {CVE-2026-98276}
• ALSA: core: Fix potential UAF after asynchronous card release {CVE-2026-98266}
• wifi: libertas_tf: fix UAF in lbtf_free_adapter() {CVE-2026-98194}
• wifi: libertas_tf: fix use-after-free in lbtf_free_adapter() {CVE-2026-72070}
• netfilter: bridge: make ebt_snat ARP rewrite writable {CVE-2026-53266}
• ALSA: seq: oss: Fix UAF at handling events with embedded SysEx data {CVE-2026-74388}
• PCI: Fix UAF when probe runs concurrent to dyn ID removal {CVE-2026-90421}
• sunrpc: route to a populated pool in svc_pool_for_cpu() {CVE-2026-89549}
• nfsd: validate symlink target length in NFSv4 CREATE {CVE-2026-89699}
• smb: client: fix OOB read/write from unvalidated DataOffset in coalesce_t2() {CVE-2026-89633}
• KVM: SVM: Bump asid_generation on CPU online to avoid ASID collision after hotplug {CVE-2026-68093}
• inet: frags: strip GSO state from fragments before reassembly {CVE-2026-80590}
• misc: sgi-gru: remove interrupt-context page-table walks {CVE-2026-90383}
• slip: remove slip_hangup() to fix use-after-free in slip_receive_buf() {CVE-2026-90057}
• slip: fix use-after-free in sl_sync() {CVE-2026-81001}
• xfs: bounds-check buffer log item's dirty bitmap {CVE-2026-80536}
• nfsd: gate nfs3 setacl by argp->mask {CVE-2026-89671}
• SUNRPC: svcauth_gss: enforce krb5 token minimum length {CVE-2026-89550}
• ALSA: mtpav: shut down output timer before card teardown {CVE-2026-90116}
• char: tlclk: fix use-after-free in tlclk_cleanup() {CVE-2026-80622}
• net/atm: fix slab-out-of-bounds read in vcc_setsockopt() {CVE-2026-74689}
• sctp: keep chunk->transport in step with the list it is queued on {CVE-2026-74588}
• ALSA: usx2y: bound the hwdep mmap fault offset {CVE-2026-74641}
• scsi: libiscsi_tcp: Bound SCSI Response data segment to the connection buffer {CVE-2026-74556}
• sctp: add INIT verification after cookie unpacking {CVE-2026-72398}
• sctp: validate embedded address parameter length {CVE-2026-74287}
• configfs_lookup(): don't leave ->s_dentry dangling on failure {CVE-2026-74359}
• ALSA: seq: midi: Serialize output teardown with event_input {CVE-2026-74387}
• ipv6: mcast: Fix potential UAF in MLD delayed work {CVE-2026-72322}
• ipv6: prevent in6_dev_get() from resurrecting inet6_dev {CVE-2026-74630}
• USB: serial: io_edgeport: cap received transmit credits {CVE-2026-68365}
• sctp: fix auth_chunk_list capacity check in sctp_auth_ep_add_chunkid {CVE-2026-68320}
• net/sched: fix packet loop on netem when duplicate is on {CVE-2026-63983}
• fbdev: fix use-after-free in store_modes() {CVE-2026-63826}
• ipv6: exthdrs: refresh nh after handling HAO option {CVE-2026-63922}
• Bluetooth: btusb: fix use-after-free on registration failure {CVE-2026-64471}
• Squashfs: check block offset is not negative {CVE-2026-90203}
• ALSA: usb-audio: fix OOB write in…

• sctp: fix err_chunk memory leaks in INIT handling {CVE-2026-72413}
• ACPICA: Fix use-after-free in acpi_ds_terminate_control_method() {CVE-2026-97455}
• ACPICA: Enhance buffer validation in acpi_ut_walk_aml_resources() {CVE-2026-97445}
• Bluetooth: L2CAP: validate connectionless PSM length {CVE-2026-97408}
• wifi: libipw: fix key index receive bound checks {CVE-2026-93803}
• netfilter: nf_conntrack_sip: fix OOB read in sip_skip_whitespace() {CVE-2026-98077}
• configfs: unhash the dentry before dropping the item in rmdir {CVE-2026-97949}
• reboot: fix cad_pid use-after-free race {CVE-2026-97938}
• ALSA: us122l: Prevent write upgrades for read mappings {CVE-2026-97931}
• net: usb: pegasus: don't rely on id table pointer arithmetic {CVE-2026-97540}
• usb: xusbatm: don't rely on id table pointer arithmetic {CVE-2026-97539}
• scsi: qla2xxx: Fix use-after-free of qpair work on queue teardown {CVE-2026-97536}
• xfrm: hold net_device reference under RCU in bundle creation {CVE-2026-98364}
• wifi: libipw: reject too-short beacon and probe responses {CVE-2026-98349}
• wifi: libipw: reject too-short association responses {CVE-2026-98348}
• net: lock the socket in sock_gettstamp() {CVE-2026-98276}
• ALSA: core: Fix potential UAF after asynchronous card release {CVE-2026-98266}
• wifi: libertas_tf: fix UAF in lbtf_free_adapter() {CVE-2026-98194}
• wifi: libertas_tf: fix use-after-free in lbtf_free_adapter() {CVE-2026-72070}
• netfilter: bridge: make ebt_snat ARP rewrite writable {CVE-2026-53266}
• ALSA: seq: oss: Fix UAF at handling events with embedded SysEx data {CVE-2026-74388}
• PCI: Fix UAF when probe runs concurrent to dyn ID removal {CVE-2026-90421}
• sunrpc: route to a populated pool in svc_pool_for_cpu() {CVE-2026-89549}
• nfsd: validate symlink target length in NFSv4 CREATE {CVE-2026-89699}
• smb: client: fix OOB read/write from unvalidated DataOffset in coalesce_t2() {CVE-2026-89633}
• KVM: SVM: Bump asid_generation on CPU online to avoid ASID collision after hotplug {CVE-2026-68093}
• inet: frags: strip GSO state from fragments before reassembly {CVE-2026-80590}
• misc: sgi-gru: remove interrupt-context page-table walks {CVE-2026-90383}
• slip: remove slip_hangup() to fix use-after-free in slip_receive_buf() {CVE-2026-90057}
• slip: fix use-after-free in sl_sync() {CVE-2026-81001}
• xfs: bounds-check buffer log item's dirty bitmap {CVE-2026-80536}
• nfsd: gate nfs3 setacl by argp->mask {CVE-2026-89671}
• SUNRPC: svcauth_gss: enforce krb5 token minimum length {CVE-2026-89550}
• ALSA: mtpav: shut down output timer before card teardown {CVE-2026-90116}
• char: tlclk: fix use-after-free in tlclk_cleanup() {CVE-2026-80622}
• net/atm: fix slab-out-of-bounds read in vcc_setsockopt() {CVE-2026-74689}
• sctp: keep chunk->transport in step with the list it is queued on {CVE-2026-74588}
• ALSA: usx2y: bound the hwdep mmap fault offset {CVE-2026-74641}
• scsi: libiscsi_tcp: Bound SCSI Response data segment to the connection buffer {CVE-2026-74556}
• sctp: add INIT verification after cookie unpacking {CVE-2026-72398}
• sctp: validate embedded address parameter length {CVE-2026-74287}
• configfs_lookup(): don't leave ->s_dentry dangling on failure {CVE-2026-74359}
• ALSA: seq: midi: Serialize output teardown with event_input {CVE-2026-74387}
• ipv6: mcast: Fix potential UAF in MLD delayed work {CVE-2026-72322}
• ipv6: prevent in6_dev_get() from resurrecting inet6_dev {CVE-2026-74630}
• USB: serial: io_edgeport: cap received transmit credits {CVE-2026-68365}
• sctp: fix auth_chunk_list capacity check in sctp_auth_ep_add_chunkid {CVE-2026-68320}
• net/sched: fix packet loop on netem when duplicate is on {CVE-2026-63983}
• fbdev: fix use-after-free in store_modes() {CVE-2026-63826}
• ipv6: exthdrs: refresh nh after handling HAO option {CVE-2026-63922}
• Bluetooth: btusb: fix use-after-free on registration failure {CVE-2026-64471}
• Squashfs: check block offset is not negative {CVE-2026-90203}
• ALSA: usb-audio: fix OOB write in…

The SUSE Linux Enterprise 12 SP2 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2020-11494: An issue was discovered in slc_bump in drivers/net/can/slcan.c, which allowed attackers to read uninitialized can_frame data, potentially containing sensitive information from kernel stack memory, if the configuration lacks CONFIG_INIT_STACK_ALL (bnc#1168424).
• CVE-2020-10942: In get_raw_socket in drivers/vhost/net.c lacks validation of an sk_family field, which might allow attackers to trigger kernel stack corruption via crafted system calls (bnc#1167629).
• CVE-2020-8647: Fixed a use-after-free vulnerability in the vc_do_resize function in drivers/tty/vt/vt.c (bnc#1162929).
• CVE-2020-8649: Fixed a use-after-free vulnerability in the vgacon_invert_region function in drivers/video/console/vgacon.c (bnc#1162931).
• CVE-2020-9383: Fixed an issue in set_fdc in drivers/block/floppy.c, which leads to a wait_til_ready out-of-bounds read (bnc#1165111).
• CVE-2019-9458: In the video driver there was a use after free due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed (bnc#1168295).
• CVE-2019-3701: Fixed an issue in can_can_gw_rcv, which could cause a system crash (bnc#1120386).
• CVE-2019-19768: Fixed a use-after-free in the __blk_add_trace function in kernel/trace/blktrace.c (bnc#1159285).
• CVE-2020-11609: Fixed a NULL pointer dereference in the stv06xx subsystem caused by mishandling invalid descriptors (bnc#1168854).
• CVE-2020-10720: Fixed a use-after-free read in napi_gro_frags() (bsc#1170778).
• CVE-2020-10690: Fixed the race between the release of ptp_clock and cdev (bsc#1170056).
• CVE-2019-9455: Fixed a pointer leak due to a WARN_ON statement in a video driver. This could lead to local information disclosure with System execution privileges needed (bnc#1170345).
• CVE-2020-11608: Fixed an issue in drivers/media/usb/gspca/ov519.c caused by a NULL pointer dereferences in ov511_mode_init_regs and ov518_mode_init_regs when there are zero endpoints (bnc#1168829).
• CVE-2017-18255: The perf_cpu_time_max_percent_handler function in kernel/events/core.c allowed local users to cause a denial of service (integer overflow) or possibly have unspecified other impact via a large value, as demonstrated by an incorrect sample-rate calculation (bnc#1087813).
• CVE-2020-8648: There was a use-after-free vulnerability in the n_tty_receive_buf_common function in drivers/tty/n_tty.c (bnc#1162928).
• CVE-2020-2732: A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest when nested virtualisation is enabled. Under some circumstances, an L2 guest may trick the L0 guest into accessing sensitive L1 resources that should be inaccessible to the L2 guest (bnc#1163971).
• CVE-2019-5108: Fixed a denial-of-service vulnerability caused by triggering AP to send IAPP location updates for stations before the required authentication process has completed (bnc#1159912).
• CVE-2020-8992: ext4_protect_reserved_inode in fs/ext4/block_validity.c allowed attackers to cause a denial of service (soft lockup) via a crafted journal size (bnc#1164069).
• CVE-2018-21008: Fixed a use-after-free which could be caused by the function rsi_mac80211_detach in the file drivers/net/wireless/rsi/rsi_91x_mac80211.c (bnc#1149591).
• CVE-2019-14896: A heap-based buffer overflow vulnerability was found in Marvell WiFi chip driver. A remote attacker could cause a denial of service (system crash) or, possibly execute arbitrary code, when the lbs_ibss_join_existing function is called after a STA connects to an AP (bnc#1157157).
• CVE-2019-14897: A stack-based buffer overflow was found in Marvell WiFi chip driver. An attacker is able to cause a denial of service (system crash) or, possibly execute arbitrary code, when a STA works in IBSS mode (allows connecting stations together without the use of an AP) and connects to…

The SUSE Linux Enterprise 12 SP3 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2020-11494: An issue was discovered in slc_bump in drivers/net/can/slcan.c, which allowed attackers to read uninitialized can_frame data, potentially containing sensitive information from kernel stack memory, if the configuration lacks CONFIG_INIT_STACK_ALL (bnc#1168424).
• CVE-2020-10942: In get_raw_socket in drivers/vhost/net.c lacks validation of an sk_family field, which might allow attackers to trigger kernel stack corruption via crafted system calls (bnc#1167629).
• CVE-2020-8647: Fixed a use-after-free vulnerability in the vc_do_resize function in drivers/tty/vt/vt.c (bnc#1162929).
• CVE-2020-8649: Fixed a use-after-free vulnerability in the vgacon_invert_region function in drivers/video/console/vgacon.c (bnc#1162931).
• CVE-2020-9383: Fixed an issue in set_fdc in drivers/block/floppy.c, which leads to a wait_til_ready out-of-bounds read (bnc#1165111).
• CVE-2019-9458: In the video driver there was a use after free due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed (bnc#1168295).
• CVE-2019-3701: Fixed an issue in can_can_gw_rcv, which could cause a system crash (bnc#1120386).
• CVE-2019-19768: Fixed a use-after-free in the __blk_add_trace function in kernel/trace/blktrace.c (bnc#1159285).
• CVE-2020-11609: Fixed a NULL pointer dereference in the stv06xx subsystem caused by mishandling invalid descriptors (bnc#1168854).
• CVE-2020-10720: Fixed a use-after-free read in napi_gro_frags() (bsc#1170778).
• CVE-2020-10690: Fixed the race between the release of ptp_clock and cdev (bsc#1170056).
• CVE-2019-9455: Fixed a pointer leak due to a WARN_ON statement in a video driver. This could lead to local information disclosure with System execution privileges needed (bnc#1170345).
• CVE-2020-11608: Fixed an issue in drivers/media/usb/gspca/ov519.c caused by a NULL pointer dereferences in ov511_mode_init_regs and ov518_mode_init_regs when there are zero endpoints (bnc#1168829).
• CVE-2017-18255: The perf_cpu_time_max_percent_handler function in kernel/events/core.c allowed local users to cause a denial of service (integer overflow) or possibly have unspecified other impact via a large value, as demonstrated by an incorrect sample-rate calculation (bnc#1087813).
• CVE-2020-8648: There was a use-after-free vulnerability in the n_tty_receive_buf_common function in drivers/tty/n_tty.c (bnc#1162928).
• CVE-2020-2732: A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest when nested virtualisation is enabled. Under some circumstances, an L2 guest may trick the L0 guest into accessing sensitive L1 resources that should be inaccessible to the L2 guest (bnc#1163971).
• CVE-2019-5108: Fixed a denial-of-service vulnerability caused by triggering AP to send IAPP location updates for stations before the required authentication process has completed (bnc#1159912).
• CVE-2020-8992: ext4_protect_reserved_inode in fs/ext4/block_validity.c allowed attackers to cause a denial of service (soft lockup) via a crafted journal size (bnc#1164069).
• CVE-2018-21008: Fixed a use-after-free which could be caused by the function rsi_mac80211_detach in the file drivers/net/wireless/rsi/rsi_91x_mac80211.c (bnc#1149591).
• CVE-2019-14896: A heap-based buffer overflow vulnerability was found in Marvell WiFi chip driver. A remote attacker could cause a denial of service (system crash) or, possibly execute arbitrary code, when the lbs_ibss_join_existing function is called after a STA connects to an AP (bnc#1157157).
• CVE-2019-14897: A stack-based buffer overflow was found in Marvell WiFi chip driver. An attacker is able to cause a denial of service (system crash) or, possibly execute arbitrary code, when a STA works in IBSS mode (allows connecting stations together without the use of an AP) and connects to…

The SUSE Linux Enterprise 11 SP4 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2020-10942: In get_raw_socket in drivers/vhost/net.c lacks validation of an sk_family field, which might allow attackers to trigger kernel stack corruption via crafted system calls (bsc#1167629).
• CVE-2020-8647: There was a use-after-free vulnerability in the vc_do_resize function in drivers/tty/vt/vt.c (bsc#1162929).
• CVE-2020-8649: There was a use-after-free vulnerability in the vgacon_invert_region function in drivers/video/console/vgacon.c (bsc#1162931).
• CVE-2020-9383: An issue was discovered set_fdc in drivers/block/floppy.c leads to a wait_til_ready out-of-bounds read because the FDC index is not checked for errors before assigning it (bsc#1165111).
• CVE-2019-19768: Fixed a use-after-free in the __blk_add_trace function in kernel/trace/blktrace.c (bsc#1159285).
• CVE-2020-11608: Fixed a NULL pointer dereferences in ov511_mode_init_regs and ov518_mode_init_regs when there are zero endpoints (bsc#1168829).
• CVE-2020-8648: There was a use-after-free vulnerability in the n_tty_receive_buf_common function in drivers/tty/n_tty.c (bsc#1162928).
• CVE-2019-14896: A heap-based buffer overflow vulnerability was found in Marvell WiFi chip driver. A remote attacker could cause a denial of service or possibly execute arbitrary code, when the lbs_ibss_join_existing function is called after a STA connects to an AP (bsc#1157157).
• CVE-2019-14897: A stack-based buffer overflow was found in the Marvell WiFi chip driver. An attacker is able to cause a denial of service or possibly execute arbitrary code, when a STA works in IBSS mode and connects to another STA (bsc#1157155).
• CVE-2019-18675: Fixed an Integer Overflow in cpia2_remap_buffer in drivers/media/usb/cpia2/cpia2_core.c because cpia2 has its own mmap implementation. This allowed local users to obtain read and write permissions on kernel physical pages, which can possibly result in a privilege escalation (bsc#1157804).
• CVE-2019-19965: Fixed a NULL pointer dereference in drivers/scsi/libsas/sas_discover.c because of mishandling of port disconnection during discovery, related to a PHY down race condition (bsc#1159911).
• CVE-2019-19066: A memory leak in the bfad_im_get_stats() function in drivers/scsi/bfa/bfad_attr.c allowed attackers to cause a denial of service by triggering bfa_port_get_stats() failures (bsc#1157303).
• CVE-2019-20096: Fixed a memory leak in __feat_register_sp() in net/dccp/feat.c, which may cause denial of service (bsc#1159908).
• CVE-2019-19966: Fixed a use-after-free in cpia2_exit() in drivers/media/usb/cpia2/cpia2_v4l.c that will cause denial of service (bsc#1159841).
• CVE-2019-19532: Fixed multiple out-of-bounds write bugs that can be caused by a malicious USB device (bsc#1158824).
• CVE-2019-19523: Fixed a use-after-free bug that can be caused by a malicious USB device in the drivers/usb/misc/adutux.c driver (bsc#115882).
• CVE-2019-19537: Fixed a race condition that can be caused by a malicious USB device in the USB character device driver layer (bsc#1158904).
• CVE-2019-19527, CVE-2019-19530, CVE-2019-19524: Fixed multiple use-after-free bug that could be caused by a malicious USB device (bsc#1158381, bsc#1158834, bsc#1158900).
• CVE-2019-15213: Fixed a use-after-free caused by a malicious USB device in the drivers/media/usb/dvb-usb/dvb-usb-init.c driver (bsc#1146544).
• CVE-2019-19531: Fixed a use-after-free bug that can be caused by a malicious USB device in the drivers/usb/misc/yurex.c driver (bsc#1158445).
• CVE-2019-18660: The Linux kernel on powerpc allowed Information Exposure because the Spectre-RSB mitigation is not in place for all applicable CPUs (bsc#1157038).
• CVE-2019-19227: Fixed a potential NULL pointer dereference in the AppleTalk subsystem (bsc#1157678).
• CVE-2019-19074: Fixed a memory leak in the ath9k_wmi_cmd(), which allowed attackers to cause a denial of service (bsc#1157143). -…