USN-7922-2: Linux kernel (FIPS) vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Cryptographic API; - ACPI drivers; - InfiniBand drivers; - Media drivers; - Network drivers; - Pin controllers...

Linux Distros Unpatched Vulnerability : CVE-2023-53838

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - f2fs: synchronize atomic write aborts To fix a race condition between atomic write aborts, I use the inode lock and make COW inode to be re-usable thoroughout t...

CVE-2023-53838

A race condition was found in the F2FS filesystem's atomic write abort handling in the Linux kernel. Concurrent atomic write abort operations lack proper synchronization, which can lead to inconsistent COW copy-on-write inode state and potential use-after-free or data corruption scenarios...

EUVD-2023-60150

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to do sanity check on direct node in truncatednode syzbot reports below bug: BUG: KASAN: slab-use-after-free in f2fstruncatedatablocksrange+0x122a/0x14c0 fs/f2fs/file.c:574 Read of size 4 at addr ffff88802a25c000 by tas...

CVE-2023-53846 f2fs: fix to do sanity check on direct node in truncate_dnode()

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to do sanity check on direct node in truncatednode syzbot reports below bug: BUG: KASAN: slab-use-after-free in f2fstruncatedatablocksrange+0x122a/0x14c0 fs/f2fs/file.c:574 Read of size 4 at addr ffff88802a25c000 by tas...

DEBIAN-CVE-2023-53763

In the Linux kernel, the following vulnerability has been resolved: Revert "f2fs: fix to do sanity check on extent cache correctly" syzbot reports a f2fs bug as below: UBSAN: array-index-out-of-bounds in fs/f2fs/f2fs.h:3275:19 index 1409 is out of range for type 'le32923' aka 'unsigned int923' Ca...

CVE-2022-50620 f2fs: fix to invalidate dcc->f2fs_issue_discard in error path

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to invalidate dcc-f2fsissuediscard in error path Syzbot reports a NULL pointer dereference issue as below: refcountadd include/linux/refcount.h:193 inline refcountinc include/linux/refcount.h:250 inline refcountinc...

USN-7906-2: Linux kernel (GCP) vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - x86 architecture; - Cryptographic API; - Android drivers; - TTY drivers; - F2FS file system; - 9P file system netwo...

f2fs: zone: fix to avoid inconsistence in between SIT and SSA

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f2fs: fix null-ptr-deref in f2fs_get_dnode_of_data

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CVE-2025-40150

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid migrating empty section It reports a bug from device w/ zufs: F2FS-fs dm-64: Inconsistent segment 173822 type 1, 0 in SSA and SIT F2FS-fs dm-64: Stopped filesystem due to reason: 4 Thread A Thread B -...

CVE-2025-40138

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid NULL pointer dereference in f2fscheckquotaconsistency syzbot reported a f2fs bug as below: Oops: gen 107.736417 T5848 Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 ...

Siemens SIMATIC S7-1500 Deadlock (CVE-2024-27032)

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid potential panic during recovery During recovery, if FAULTBLOCK is on, it is possible that f2fsreservenewblock will return -ENOSPC during recovery, then it may trigger panic. Also, if fault injection rate is 1 a...

EUVD-2025-124945

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid NULL pointer dereference in f2fscheckquotaconsistency syzbot reported a f2fs bug as below: Oops: gen 107.736417 T5848 Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 ...

CVE-2025-40138

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid NULL pointer dereference in f2fscheckquotaconsistency syzbot reported a f2fs bug as below: Oops: gen 107.736417 T5848 Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 ...

UBUNTU-CVE-2025-40137

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to truncate first page in error path of f2fstruncate syzbot reports a bug as below: loop0: detected capacity change from 0 to 40427 F2FS-fs loop0: Wrong SSA boundary, start3584 end4096 blocks3072 F2FS-fs loop0: Can't fi...

CVE-2025-40138

Summary: CVE-2025-40138 affects the Linux kernel f2fs quota maintenance path. The issue is a NULL pointer dereference in f2fs_check_quota_consistency(), triggered by unsafe handling before comparing old_qname/new_qname pointers during remount/quotacheck flows. The bug’s direct cause is a potentia...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989419)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989419 advisory. In the Linux kernel, the following vulnerability has been resolved: f2fs: avoid format-overflow warning With gcc and W=1 option, there's a warning like this:...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-988914)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-988914 advisory. In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to do sanity check on curseg-alloctype As Wenqing Liu reported in bugzilla:...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989219)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989219 advisory. In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to do sanity check on totaldatablocks As Yanming reported in bugzilla:...