CVE-2022-49727

The Linux Kernel, the operating system core itself.

Security Fix(es):

In the Linux kernel, the following vulnerability has been resolved:

drm/plane: Move range check for format_count earlier

While the check for format_count > 64 in __drm_universal_plane_init() shouldn't be hit (it's a WARN_ON), in its current position it will then leak the plane->format_types array and fail to call drm_mode_object_unregister() leaking the modeset identifier. Move it to the start of the function to avoid allocating those resources in the first place.(CVE-2021-47659)

In the Linux kernel, the following vulnerability has been resolved:

scsi: target: tcmu: Fix possible page UAF

tcmu_try_get_data_page() looks up pages under cmdr_lock, but it does not take refcount properly and just returns page pointer. When tcmu_try_get_data_page() returns, the returned page may have been freed by tcmu_blocks_release().

We need to get_page() under cmdr_lock to avoid concurrent tcmu_blocks_release().(CVE-2022-49053)

In the Linux kernel, the following vulnerability has been resolved:

ASoC: atmel: Add missing of_node_put() in at91sam9g20ek_audio_probe

This node pointer is returned by of_parse_phandle() with refcount incremented in this function. Calling of_node_put() to avoid the refcount leak.(CVE-2022-49243)

In the Linux kernel, the following vulnerability has been resolved:

ALSA: oss: Fix PCM OSS buffer allocation overflow

We've got syzbot reports hitting INT_MAX overflow at vmalloc() allocation that is called from snd_pcm_plug_alloc(). Although we apply the restrictions to input parameters, it's based only on the hw_params of the underlying PCM device. Since the PCM OSS layer allocates a temporary buffer for the data conversion, the size may become unexpectedly large when more channels or higher rates is given; in the reported case, it went over INT_MAX, hence it hits WARN_ON().

This patch is an attempt to avoid such an overflow and an allocation for too large buffers. First off, it adds the limit of 1MB as the upper bound for period bytes. This must be large enough for all use cases, and we really don't want to handle a larger temporary buffer than this size. The size check is performed at two places, where the original period bytes is calculated and where the plugin buffer size is calculated.

In addition, the driver uses array_size() and array3_size() for multiplications to catch overflows for the converted period size and buffer bytes.(CVE-2022-49292)

In the Linux kernel, the following vulnerability has been resolved:

drm/amdgpu/cs: make commands with 0 chunks illegal behaviour.

Submitting a cs with 0 chunks, causes an oops later, found trying to execute the wrong userspace driver.

MESA_LOADER_DRIVER_OVERRIDE=v3d glxinfo

[172536.665184] BUG: kernel NULL pointer dereference, address: 00000000000001d8 [172536.665188] #PF: supervisor read access in kernel mode [172536.665189] #PF: error_code(0x0000) - not-present page [172536.665191] PGD 6712a0067 P4D 6712a0067 PUD 5af9ff067 PMD 0 [172536.665195] Oops: 0000 [#1] SMP NOPTI [172536.665197] CPU: 7 PID: 2769838 Comm: glxinfo Tainted: P O 5.10.81 #1-NixOS [172536.665199] Hardware name: To be filled by O.E.M. To be filled by O.E.M./CROSSHAIR V FORMULA-Z, BIOS 2201 03/23/2015 [172536.665272] RIP: 0010:amdgpu_cs_ioctl+0x96/0x1ce0 [amdgpu] [172536.665274] Code: 75 18 00 00 4c 8b b2 88 00 00 00 8b 46 08 48 89 54 24 68 49 89 f7 4c 89 5c 24 60 31 d2 4c 89 74 24 30 85 c0 0f 85 c0 01 00 00 <48> 83 ba d8 01 00 00 00 48 8b b4 24 90 00 00 00 74 16 48 8b 46 10 [172536.665276] RSP: 0018:ffffb47c0e81bbe0 EFLAGS: 00010246 [172536.665277] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [172536.665278] RDX: 0000000000000000 RSI: ffffb47c0e81be28 RDI: ffffb47c0e81bd68 [172536.665279] RBP: ffff936524080010 R08: 0000000000000000 R09: ffffb47c0e81be38 [172536.665281] R10: ffff936524080010 R11: ffff936524080000 R12: ffffb47c0e81bc40…

In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg When len >= INT_MAX - transhdrlen, ulen = len + transhdrlen will be overflow. To fix, we can follow what udpv6 does and subtract the transhdrlen from the max.

• net: skbuff: propagate shared-frag marker in skb_zerocopy()
• net: ipv6: clear suppressed fib6 rule result {CVE-2026-74581}
• net: skbuff: propagate shared-frag marker through frag-transfer helpers {CVE-2026-43503}
• ALSA: virtio: reset device before deleting virtqueues {CVE-2026-98264}
• ALSA: usb-audio: fix OOB write in snd_usbmidi_us122l_output() {CVE-2026-90033}
• ALSA: 6fire: Fix UAF at error handling during probe {CVE-2026-74505}
• net: tls: fix off-by-one in sg_chain entry count for wrapped sk_msg ring {CVE-2026-64047}
• SUNRPC: Fix a server shutdown leak {CVE-2023-53131}
• libceph: Fix potential out-of-bounds access in __ceph_x_decrypt() {CVE-2026-52956}
• usb: xusbatm: don't rely on id table pointer arithmetic {CVE-2026-97539}
• thunderbolt: Keep XDomain reference during the lifetime of a service {CVE-2026-97509}
• nvdimm/btt: reject an arena whose nfree is below the lane count {CVE-2026-89965}
• libnvdimm/labels: Prevent integer overflow in __nd_label_validate() {CVE-2026-89559}
• wifi: brcmsmac: fix UAF in brcms_free_timer() {CVE-2026-98196}
• wifi: mwifiex: validate scan response extents {CVE-2026-98185}
• net: usb: cx82310_eth: drop URB after 0xffff reboot sentinel to prevent partial_data heap overflow {CVE-2026-98025}
• net/mlx5: E-Switch: fix use-after-free in mlx5_eswitch_termtbl_put {CVE-2026-98015}
• qed/qed_sriov: guard against NULL derefs from qed_iov_get_vf_info {CVE-2023-53066}
• Input: synaptics-rmi4 - bound the F30 keymap to the GPIO/LED count {CVE-2026-64276}
• Input: synaptics-rmi4 - bound the F3A keymap to the GPIO count {CVE-2026-64277}
• dmaengine: Fix possible use after free {CVE-2026-72476}
• netfilter: nf_log: unregister loggers before per-net teardown {CVE-2026-97608}
• netfilter: nfnetlink_log: wait for rcu grace period before freeing pernet state {CVE-2026-93288}
• mpls: add seqcount to protect the platform_label{,s} pair {CVE-2026-43042}
• Bluetooth: L2CAP: fix UAF in l2cap_le_connect_rsp {CVE-2026-74540}
• usb: dwc2: Fix use after free in debug code {CVE-2026-63927}
• KVM: SVM: Fix page overflow in sev_dbg_crypt() for ENCRYPT path {CVE-2026-63794}
• KVM: nVMX: Always flush vpid02 on first use {CVE-2026-89932}
• x86/mm/ident_map: Use gbpages only where full GB page should be mapped. {CVE-2024-50017}
• crypto: authencesn - reject short ahash digests during instance creation {CVE-2026-46033}
• ACPICA: Add validation for node in acpi_ns_build_normalized_path() {CVE-2026-97448}
• drm/amd/pm: bound pp_dpm_set_pp_table() memcpy {CVE-2026-97427}
• drm/vmwgfx: validate DRAW_PRIMITIVES header size before division {CVE-2026-74444}
• HID: sensor-hub: Fix out-of-bounds write in sensor_hub_get_feature {CVE-2026-89729}
• i2c: stub: Reject I2C block transfers with invalid length {CVE-2026-64191}
• RDMA/ucma: Lock the handler in ucma_set_ib_path() {CVE-2026-89508}
• RDMA/srpt: fix integer overflow in immediate data length check {CVE-2026-74394}
• dm log: fix out-of-bounds write due to region_count overflow {CVE-2026-53059}
• dm raid1: reserve space for NUL-terminator in build_constructor_string() {CVE-2026-89575}
• veth: fix NAPI leak in XDP enable error path {CVE-2026-80613}
• net: hns3: fix kernel crash when 1588 is received on HIP08 devices {CVE-2024-26881}
• ixgbevf: fix use-after-free in VEPA multicast source pruning {CVE-2026-64113}
• net: mana: validate rx_req_idx to prevent out-of-bounds array access {CVE-2026-64018}
• net: stmmac: xgmac2: disable RBUE in default RX interrupt mask {CVE-2026-93830}
• net: usb: kalmia: bound RX frame length in kalmia_rx_fixup() {CVE-2026-64351}
• net: usb: pegasus: don't rely on id table pointer arithmetic {CVE-2026-97540}
• vxlan: do not reuse cached ip_hdr() value after skb_tunnel_check_pmtu() {CVE-2026-63993}
• wifi: ath9k: fix OOB access from firmware tx status queue ID {CVE-2026-74408}
• PCI: iproc: Protect root bus removal with rescan lock {CVE-2026-93822}
• scsi: qla2xxx: Avoid double completion in async IOCB timeout {CVE-2026-89847}
• fs/mbcache: cancel…

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

The following security bugs were fixed:

• CVE-2021-46925: Fixed kernel panic caused by race of smc_sock (bsc#1220466).
• CVE-2021-47645: media: staging: media: zoran: calculate the right buffer number for zoran_reap_stat_com (bsc#1237767).
• CVE-2021-47648: gpu: host1x: Fix a memory leak in 'host1x_remove()' (bsc#1237725).
• CVE-2022-49046: i2c: dev: check return value when calling dev_set_name() (bsc#1237842).
• CVE-2022-49051: net: usb: aqc111: Fix out-of-bounds accesses in RX fixup (bsc#1237903).
• CVE-2022-49053: scsi: target: tcmu: Fix possible page UAF (bsc#1237918).
• CVE-2022-49059: nfc: nci: add flush_workqueue to prevent uaf (bsc#1238007).
• CVE-2022-49074: irqchip/gic-v3: Fix GICR_CTLR.RWP polling (bsc#1237728).
• CVE-2022-49075: btrfs: fix qgroup reserve overflow the qgroup limit (bsc#1237733).
• CVE-2022-49084: qede: confirm skb is allocated before using (bsc#1237751).
• CVE-2022-49107: ceph: fix memory leak in ceph_readdir when note_last_dentry returns error (bsc#1237973).
• CVE-2022-49109: ceph: fix inode reference leakage in ceph_get_snapdir() (bsc#1237836).
• CVE-2022-49119: scsi: pm8001: Fix memory leak in pm8001_chip_fw_flash_update_req() (bsc#1237925).
• CVE-2022-49120: scsi: pm8001: Fix task leak in pm8001_send_abort_all() (bsc#1237969).
• CVE-2022-49209: bpf, sockmap: Fix memleak in tcp_bpf_sendmsg while sk msg is full (bsc#1238252).
• CVE-2022-49220: dax: make sure inodes are flushed before destroy cache (bsc#1237936).
• CVE-2022-49275: can: m_can: m_can_tx_handler(): fix use after free of skb (bsc#1238719).
• CVE-2022-49286: tpm: use try_get_ops() in tpm-space.c (bsc#1238647).
• CVE-2022-49292: ALSA: oss: Fix PCM OSS buffer allocation overflow (bsc#1238625).
• CVE-2022-49308: extcon: Modify extcon device to be created after driver data is set (bsc#1238654).
• CVE-2022-49331: nfc: st21nfca: fix memory leaks in EVT_TRANSACTION handling (bsc#1237813).
• CVE-2022-49344: af_unix: Fix a data-race in unix_dgram_peer_wake_me() (bsc#1237988).
• CVE-2022-49367: net: dsa: mv88e6xxx: Fix refcount leak in mv88e6xxx_mdios_register (bsc#1238447).
• CVE-2022-49370: firmware: dmi-sysfs: Fix memory leak in dmi_sysfs_register_handle (bsc#1238467).
• CVE-2022-49372: tcp: tcp_rtx_synack() can be called from process context (bsc#1238251).
• CVE-2022-49388: ubi: ubi_create_volume: Fix use-after-free when volume creation failed (bsc#1237934).
• CVE-2022-49395: um: Fix out-of-bounds read in LDT setup (bsc#1237953).
• CVE-2022-49397: phy: qcom-qmp: fix struct clk leak on probe errors (bsc#1237823).
• CVE-2022-49404: RDMA/hfi1: Fix potential integer multiplication overflow errors (bsc#1238430).
• CVE-2022-49416: wifi: mac80211: fix use-after-free in chanctx code (bsc#1238293).
• CVE-2022-49433: RDMA/hfi1: Prevent use of lock before it is initialized (bsc#1238268).
• CVE-2022-49472: net: phy: micrel: Allow probing without .driver_data (bsc#1238951).
• CVE-2022-49488: drm/msm/mdp5: Return error code in mdp5_mixer_release when deadlock (bsc#1238600).
• CVE-2022-49495: drm/msm/hdmi: check return value after calling platform_get_resource_byname() (bsc#1237932).
• CVE-2022-49497: net: remove two BUG() from skb_checksum_help() (bsc#1238946).
• CVE-2022-49505: NFC: NULL out the dev->rfkill to prevent UAF (bsc#1238615).
• CVE-2022-49516: ice: always check VF VSI pointer values (bsc#1238953).
• CVE-2022-49519: ath10k: skip ath10k_halt during suspend for driver state RESTARTING (bsc#1238943).
• CVE-2022-49524: media: pci: cx23885: Fix the error handling in cx23885_initdev() (bsc#1238949).
• CVE-2022-49530: drm/amd/pm: fix double free in si_parse_power_table() (bsc#1238944).
• CVE-2022-49538: ALSA: jack: Fix mutex call in snd_jack_report() (bsc#1238843).
• CVE-2022-49544: ipw2x00: Fix potential NULL dereference in libipw_xmit() (bsc#1238721).
• CVE-2022-49545: ALSA: usb-audio: Cancel pending work at closing a MIDI substream (bsc#1238729). -…