Moderate: Red Hat Security Advisory: kernel-rt security update

An update for kernel-rt is now available for Red Hat Enterprise Linux 7 Extended Lifecycle Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available f...

kernel: mm: fix zswap writeback race condition

In the Linux kernel, the following vulnerability has been resolved: mm: fix zswap writeback race condition The zswap writeback mechanism can cause a race condition resulting in memory corruption, where a swapped out page gets swapped in with data that was written to a different page. The race...

RHEL 7 : kernel (RHSA-2025:23947)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:23947 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: ALSA: usb-audio: Validate UAC...

kernel: iomap: iomap: fix memory corruption when recording errors during writeback

In the Linux kernel, the following vulnerability has been resolved: iomap: iomap: fix memory corruption when recording errors during writeback Every now and then I see this crash on arm64: Unable to handle kernel NULL pointer dereference at virtual address 00000000000000f8 Buffer I/O error on dev...

Important: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerabilit...

kernel: iomap: iomap: fix memory corruption when recording errors during writeback

In the Linux kernel, the following vulnerability has been resolved: iomap: iomap: fix memory corruption when recording errors during writeback Every now and then I see this crash on arm64: Unable to handle kernel NULL pointer dereference at virtual address 00000000000000f8 Buffer I/O error on dev...

kernel: mm: fix zswap writeback race condition

In the Linux kernel, the following vulnerability has been resolved: mm: fix zswap writeback race condition The zswap writeback mechanism can cause a race condition resulting in memory corruption, where a swapped out page gets swapped in with data that was written to a different page. The race...

kernel: iomap: iomap: fix memory corruption when recording errors during writeback

In the Linux kernel, the following vulnerability has been resolved: iomap: iomap: fix memory corruption when recording errors during writeback Every now and then I see this crash on arm64: Unable to handle kernel NULL pointer dereference at virtual address 00000000000000f8 Buffer I/O error on dev...

SUSE CVE-2023-53848

In the Linux kernel, the following vulnerability has been resolved: md/raid5-cache: fix a deadlock in r5lexitlog Commit b13015af94cf "md/raid5-cache: Clear conf-log after finishing work" introduce a new problem: // caller hold reconfigmutex r5lexitlog flushwork&log-disablewritebackwork...

SUSE CVE-2023-53862

In the Linux kernel, the following vulnerability has been resolved: hfs: fix missing hfsbnodeget in hfsbnodecreate Syzbot found a kernel BUG in hfsbnodeput: kernel BUG at fs/hfs/bnode.c:466! invalid opcode: 0000 1 PREEMPT SMP KASAN CPU: 0 PID: 3634 Comm: kworker/u4:5 Not tainted...

EUVD-2023-60134

In the Linux kernel, the following vulnerability has been resolved: hfs: fix missing hfsbnodeget in hfsbnodecreate Syzbot found a kernel BUG in hfsbnodeput: kernel BUG at fs/hfs/bnode.c:466! invalid opcode: 0000 1 PREEMPT SMP KASAN CPU: 0 PID: 3634 Comm: kworker/u4:5 Not tainted...

CVE-2023-53862

In the Linux kernel, the following vulnerability has been resolved: hfs: fix missing hfsbnodeget in hfsbnodecreate Syzbot found a kernel BUG in hfsbnodeput: kernel BUG at fs/hfs/bnode.c:466! invalid opcode: 0000 1 PREEMPT SMP KASAN CPU: 0 PID: 3634 Comm: kworker/u4:5 Not tainted...

btrfs: ensure no dirty metadata is written back for an fs with errors

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CVE-2023-53862

The CVE-2023-53862 entry documents a Linux kernel issue in hfs_bnode_create: a missing hfs_bnode_get() increases refcnt handling failures, leading to a kernel BUG (hfs_bnode_put) when refcnt is 0 during writeback. The root cause path is: allocation via hfs_bmap_alloc/hfs_bnode_find/__hfs_bnode_cr...

CVE-2023-53862 hfs: fix missing hfs_bnode_get() in __hfs_bnode_create

In the Linux kernel, the following vulnerability has been resolved: hfs: fix missing hfsbnodeget in hfsbnodecreate Syzbot found a kernel BUG in hfsbnodeput: kernel BUG at fs/hfs/bnode.c:466! invalid opcode: 0000 1 PREEMPT SMP KASAN CPU: 0 PID: 3634 Comm: kworker/u4:5 Not tainted...

EUVD-2025-201642

In the Linux kernel, the following vulnerability has been resolved: btrfs: ensure no dirty metadata is written back for an fs with errors BUG During development of a minor feature make sure all btrfsbio::endio is called in task context, I noticed a crash in generic/388, where metadata writes...

CVE-2025-40303

In the Linux kernel, the following vulnerability has been resolved: btrfs: ensure no dirty metadata is written back for an fs with errors BUG During development of a minor feature make sure all btrfsbio::endio is called in task context, I noticed a crash in generic/388, where metadata writes...

UBUNTU-CVE-2025-40303

In the Linux kernel, the following vulnerability has been resolved: btrfs: ensure no dirty metadata is written back for an fs with errors BUG During development of a minor feature make sure all btrfsbio::endio is called in task context, I noticed a crash in generic/388, where metadata writes...

CVE-2025-40303

CVE-2025-40303 affects the Linux kernel’s Btrfs: when the filesystem is in an error state, dirty metadata may be written back due to pending in-memory metadata and a stopped workqueue path. The root cause is that, if an error occurs, no new transactions are allowed and dirty folios in the btrie i...

kernel: mm: fix zswap writeback race condition

In the Linux kernel, the following vulnerability has been resolved: mm: fix zswap writeback race condition The zswap writeback mechanism can cause a race condition resulting in memory corruption, where a swapped out page gets swapped in with data that was written to a different page. The race...