CVE-2022-49852 riscv: process: fix kernel info leakage

In the Linux kernel, the following vulnerability has been resolved: riscv: process: fix kernel info leakage threadstruct's s12 may contain random kernel memory content, which may be finally leaked to userspace. This is a security hole. Fix it by clearing the s12 array in threadstruct when fork. A...

CVE-2022-49850 nilfs2: fix deadlock in nilfs_count_free_blocks()

In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix deadlock in nilfscountfreeblocks A semaphore deadlock can occur if nilfsgetblock detects metadata corruption while locating data blocks and a superblock writeback occurs at the same time: task 1 task 2 ------ ------ A...

CVE-2022-49849 btrfs: fix match incorrectly in dev_args_match_device

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix match incorrectly in devargsmatchdevice syzkaller found a failed assertion: assertion failed: args-devid != u64-1 || args-missing, in fs/btrfs/volumes.c:6921 This can be triggered when we set devid to u64-1 by ioctl. I...

CVE-2022-49849 btrfs: fix match incorrectly in dev_args_match_device

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix match incorrectly in devargsmatchdevice syzkaller found a failed assertion: assertion failed: args-devid != u64-1 || args-missing, in fs/btrfs/volumes.c:6921 This can be triggered when we set devid to u64-1 by ioctl. I...

CVE-2022-49849

CVE-2022-49849 fixes a Linux kernel flaw in the Btrfs dev_args_match_device path. When devid is set to (u64)-1 via ioctl, the match of devid may be skipped and device matching may succeed incorrectly. The issue was introduced by a patch that added the function used to match devices; the two match...

CVE-2022-49847 net: ethernet: ti: am65-cpsw: Fix segmentation fault at module unload

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: ti: am65-cpsw: Fix segmentation fault at module unload Move am65cpswnussphylinkcleanup call to after am65cpswnusscleanupndev so phylink is still valid to prevent the below Segmentation fault on module remove when...

CVE-2022-49844 can: dev: fix skb drop check

In the Linux kernel, the following vulnerability has been resolved: can: dev: fix skb drop check In commit a6d190f8c767 "can: skb: drop tx skb if in listen only mode" the priv-ctrlmode element is read even on virtual CAN interfaces that do not create the struct canpriv at startup. This...

CVE-2022-49842

CVE-2022-49842: In the Linux kernel’s ASoC core, a use-after-free in snd_soc_exit() was fixed. The root cause was a missing error check in snd_soc_init() where snd_soc_util_init() could fail and return value was ignored, causing soc_dummy_dev to be unregistered twice. The fix requires handling er...

CVE-2022-49838

In CVE-2022-49838, the Linux kernel SCTP code was fixed to clear out_curr when all fragments of the current message are pruned, preventing a NULL pointer dereference during dequeue. The issue manifested as list_del corruption and a crash traced through sctp_sched_fcfs_dequeue and related SCTP pat...

CVE-2022-49838 sctp: clear out_curr if all frag chunks of current msg are pruned

In the Linux kernel, the following vulnerability has been resolved: sctp: clear outcurr if all frag chunks of current msg are pruned A crash was reported by Zhen Chen: listdel corruption, ffffa035ddf01c18-next is NULL WARNING: CPU: 1 PID: 250682 at lib/listdebug.c:49 listdelentryvalid+0x59/0xe0...

CVE-2022-49835

CVE-2022-49835 relates to the Linux kernel ALSA: hda subsystem where memory leaks could occur in add_widget_node due to how kobject_add allocates kobject->name and may not free the kobject on error. The root cause is failure to recycle resources when kobject_add fails, leading to a potential m...

CVE-2022-49834 nilfs2: fix use-after-free bug of ns_writer on remount

In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix use-after-free bug of nswriter on remount If a nilfs2 filesystem is downgraded to read-only due to metadata corruption on disk and is remounted read/write, or if emergency read-only remount is performed, detaching a l...

CVE-2022-49834 nilfs2: fix use-after-free bug of ns_writer on remount

In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix use-after-free bug of nswriter on remount If a nilfs2 filesystem is downgraded to read-only due to metadata corruption on disk and is remounted read/write, or if emergency read-only remount is performed, detaching a l...

CVE-2022-49833

The CVE-2022-49833 issue affects the Linux kernel's btrfs zoned handling: when cloning a btrfs_device, the associated btrfs_zoned_device_info is not cloned for zoned filesystems, which can lead to a NULL pointer dereference when accessing the device’s zone_info (e.g., when activating a zone). The...

CVE-2022-49832 pinctrl: devicetree: fix null pointer dereferencing in pinctrl_dt_to_map

In the Linux kernel, the following vulnerability has been resolved: pinctrl: devicetree: fix null pointer dereferencing in pinctrldttomap Here is the BUG report by KASAN about null pointer dereference: BUG: KASAN: null-ptr-deref in strcmp+0x2e/0x50 Read of size 1 at addr 0000000000000000 by task...

CVE-2022-49831 btrfs: zoned: initialize device's zone info for seeding

In the Linux kernel, the following vulnerability has been resolved: btrfs: zoned: initialize device's zone info for seeding When performing seeding on a zoned filesystem it is necessary to initialize each zoned device's btrfszoneddeviceinfo structure, otherwise mounting the filesystem will cause ...

CVE-2022-49831

The CVE relates to the Linux kernel btrfs zoned feature. The issue occurs during seeding on a zoned filesystem if each zoned device’s btrfs_zoned_device_info is not initialized, causing a NULL pointer dereference when mounting. Multiple sources confirm this vulnerability and its resolution in the...

CVE-2022-49829

CVE-2022-49829 pertains to the Linux kernel DRM scheduler exhibit: fix of fence ref counting to prevent leaking dependency fences when processes are killed. The issue involved grabbing a reference to the last scheduled fence and leaks occur due to improper fence ref counts. Connected advisories (...

CVE-2022-49829 drm/scheduler: fix fence ref counting

In the Linux kernel, the following vulnerability has been resolved: drm/scheduler: fix fence ref counting We leaked dependency fences when processes were beeing killed. Additional to that grab a reference to the last scheduled fence...

CVE-2022-49825

CVE-2022-49825 — Linux kernel (libata-transport) In ata_tport_add(), the return value of transport_add_device() is not checked, which can lead to a NULL pointer dereference during module removal when transport_remove_device() is called for a device that was not added. The vulnerability is resolve...