UBUNTU-CVE-2023-54124

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to drop all dirty pages during umount if cperror is set xfstest generic/361 reports a bug as below: f2fsbugonsbi, sbi-fsyncnodenum; kernel BUG at fs/f2fs/super.c:1627! RIP: 0010:f2fsputsuper+0x3a8/0x3b0 Call Trace:...

CVE-2022-50782

In the Linux kernel, the following vulnerability has been resolved: ext4: fix bugon in estreesearch caused by bad quota inode We got a issue as fllows: ================================================================== kernel BUG at fs/ext4/extentsstatus.c:202! invalid opcode: 0000 1 PREEMPT SMP...

CVE-2023-54121

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix incorrect splitting in btrfsdropextentmaprange In production we were seeing a variety of WARNON's in the extentmap code, specifically in btrfsdropextentmaprange when we have to call addextentmapping for our second spli...

CVE-2022-50783

In the Linux kernel, the following vulnerability has been resolved: mptcp: use proper req destructor for IPv6 Before, only the destructor from TCP request sock in IPv4 was called even if the subflow was IPv6. It is important to use the right destructor to avoid memory leaks with some advanced IPv...

CVE-2022-50716

In the Linux kernel, the following vulnerability has been resolved: wifi: ar5523: Fix use-after-free on ar5523cmd timed out syzkaller reported use-after-free with the stack trace like below 1: 38.960489 C3 ================================================================== 38.963216 C3 BUG: KASAN:...

UBUNTU-CVE-2022-50725

In the Linux kernel, the following vulnerability has been resolved: media: vidtv: Fix use-after-free in vidtvbridgedvbinit KASAN reports a use-after-free: BUG: KASAN: use-after-free in dvbdmxdevrelease+0x4d5/0x5d0 dvbcore Call Trace: ... dvbdmxdevrelease+0x4d5/0x5d0 dvbcore...

CVE-2022-50727

In the Linux kernel, the following vulnerability has been resolved: scsi: efct: Fix possible memleak in efctdeviceinit In efctdeviceinit, when efctscsiregfctransport fails, efctscsitgtdriverexit is not called to release memory for efctscsitgtdriverinit and causes memleak: unreferenced object...

CVE-2023-54160 firmware: arm_sdei: Fix sleep from invalid context BUG

In the Linux kernel, the following vulnerability has been resolved: firmware: armsdei: Fix sleep from invalid context BUG Running a preempt-rt v6.2-rc3-rt1 based kernel on an Ampere Altra triggers: BUG: sleeping function called from invalid context at kernel/locking/spinlockrt.c:46 inatomic: 0,...

CVE-2023-54160 firmware: arm_sdei: Fix sleep from invalid context BUG

In the Linux kernel, the following vulnerability has been resolved: firmware: armsdei: Fix sleep from invalid context BUG Running a preempt-rt v6.2-rc3-rt1 based kernel on an Ampere Altra triggers: BUG: sleeping function called from invalid context at kernel/locking/spinlockrt.c:46 inatomic: 0,...

CVE-2023-54158 btrfs: don't free qgroup space unless specified

In the Linux kernel, the following vulnerability has been resolved: btrfs: don't free qgroup space unless specified Boris noticed in his simple quotas testing that he was getting a leak with Sweet Tea's change to subvol create that stopped doing a transaction commit. This was just a side effect o...

CVE-2023-54142

CVE-2023-54142: In the Linux kernel gtp_encap path, a use-after-free occurs in __gtp_encap_destroy() when sk cleanup races with sock data access. The advisory notes that a previous patch added lock_sock() and release_sock() around __gtp_encap_destroy() to protect sk->sk_user_data, but release_...

CVE-2023-54127 fs/jfs: prevent double-free in dbUnmount() after failed jfs_remount()

In the Linux kernel, the following vulnerability has been resolved: fs/jfs: prevent double-free in dbUnmount after failed jfsremount Syzkaller reported the following issue: ================================================================== BUG: KASAN: double-free in slabfree mm/slub.c:3787 inline...

CVE-2023-54125 fs/ntfs3: Return error for inconsistent extended attributes

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Return error for inconsistent extended attributes ntfsreadea is called when we want to read extended attributes. There are some sanity checks for the validity of the EAs. However, it fails to return a proper error code...

CVE-2023-54121

CVE-2023-54121 affects the Linux kernel's btrfs extent_map handling. The bug in btrfs_drop_extent_map_range can miscalculate the length when skipping a pinned extent, leading to a faulty split of the next extent and creating an invalid extent_map that may overlap other entries and disrupt block c...

CVE-2023-54089 virtio_pmem: add the missing REQ_OP_WRITE for flush bio

In the Linux kernel, the following vulnerability has been resolved: virtiopmem: add the missing REQOPWRITE for flush bio When doing mkfs.xfs on a pmem device, the following warning was ------------ cut here ------------ WARNING: CPU: 2 PID: 384 at block/blk-core.c:751 submitbionoacct Modules link...

CVE-2022-50782

CVE-2022-50782 is tied to an ext4 quota bug where a bad quota inode can bypass ext4 inode checks and trigger a BUG_ON in __es_tree_search. The issue chain involves ext4_fill_super -> ext4_enable_quotas -> ext4_iget -> ext4_ext_check_inode and can be exploited when s_usr_quota_inum equals...

CVE-2022-50782 ext4: fix bug_on in __es_tree_search caused by bad quota inode

In the Linux kernel, the following vulnerability has been resolved: ext4: fix bugon in estreesearch caused by bad quota inode We got a issue as fllows: ================================================================== kernel BUG at fs/ext4/extentsstatus.c:202! invalid opcode: 0000 1 PREEMPT SMP...

CVE-2022-50780 net: fix UAF issue in nfqnl_nf_hook_drop() when ops_init() failed

In the Linux kernel, the following vulnerability has been resolved: net: fix UAF issue in nfqnlnfhookdrop when opsinit failed When the opsinit interface is invoked to initialize the net, but ops-init fails, data is released. However, the ptr pointer in net-gen is invalid. In this case, when...

CVE-2022-50764

The CVE-2022-50764 entry concerns a Linux kernel issue in ipv6/sit where dev->stats.tx_error data-races occur because sit tunnels are NETIF_F_LLTX and not protected by a spinlock. The root cause is multiple CPUs updating tx_error concurrently, with the fix implemented as DEV_STATS_INC() to avo...

CVE-2022-50751

CVE-2022-50751 is fixed in the Linux kernel to address a memory leak in configfs_create_dir caused by incorrect refcount handling when configfs_create() fails during subsystem registration. The root cause described across the provided details is that, in the error path, configfs_d_iput() is not r...