CVE-2024-42257

The CVE-2024-42257 issue affects the Linux kernel ext4 code: the s_volume_name field in ext4_super_block was not NUL terminated. The root cause was using the wrong string copy approach; memtostr_pad() should be used instead of strncpy(), aligning with prior nonstring annotations in ext4.h. The re...

CVE-2024-42257 ext4: use memtostr_pad() for s_volume_name

In the Linux kernel, the following vulnerability has been resolved: ext4: use memtostrpad for svolumename As with the other strings in struct ext4superblock, svolumename is not NUL terminated. The other strings were marked in commit 072ebb3bffe6 "ext4: add nonstring annotations to ext4.h". Using...

CVE-2024-42257 ext4: use memtostr_pad() for s_volume_name

In the Linux kernel, the following vulnerability has been resolved: ext4: use memtostrpad for svolumename As with the other strings in struct ext4superblock, svolumename is not NUL terminated. The other strings were marked in commit 072ebb3bffe6 "ext4: add nonstring annotations to ext4.h". Using...

CVE-2024-42257

In the Linux kernel, the following vulnerability has been resolved: ext4: use memtostrpad for svolumename As with the other strings in struct ext4superblock, svolumename is not NUL terminated. The other strings were marked in commit 072ebb3bffe6 "ext4: add nonstring annotations to ext4.h". Using...

kernel: ext4: fix double-free of blocks due to wrong extents moved_len

A vulnerability was found in the Linux kernel. This issue occurs in the ext4 function, in ext4moveextents, where an error in updating the movedlen variable can lead to double-free of blocks and corrupt block accounting. This could lead to crashes or undefined behavior...

kernel: ext4: fix mb_cache_entry's e_refcnt leak in ext4_xattr_block_cache_find()

In the Linux kernel, the following vulnerability has been resolved: ext4: fix mbcacheentry's erefcnt leak in ext4xattrblockcachefind Syzbot reports a warning as follows: ============================================ WARNING: CPU: 0 PID: 5075 at fs/mbcache.c:419 mbcachedestroy+0x224/0x290 Modules...

kernel: ext4: fix corruption during on-line resize

A vulnerability was found in the ext4 filesystem in the Linux kernel during on-line resizing operations. When an ext4 filesystem is resized while mounted, it could lead to data corruption...

kernel: ext4: avoid allocating blocks from corrupted group in ext4_mb_try_best_found()

A vulnerability was found in the ext4mbtrybestfound function in the Linux kernel. This issue could lead to memory corruption or crashes due to the allocation of blocks from a group with a corrupted block bitmap...

kernel: ext4: avoid allocating blocks from corrupted group in ext4_mb_try_best_found()

A vulnerability was found in the ext4mbtrybestfound function in the Linux kernel. This issue could lead to memory corruption or crashes due to the allocation of blocks from a group with a corrupted block bitmap...

kernel: ext4: avoid online resizing failures due to oversized flex bg

In the Linux kernel, the following vulnerability has been resolved: ext4: avoid online resizing failures due to oversized flex bg When we online resize an ext4 filesystem with a oversized flexbgsize, mkfs.ext4 -F -G 67108864 $dev -b 4096 100M mount $dev $dir resize2fs $dev 16G the following WARNO...

kernel: ext4: fix mb_cache_entry's e_refcnt leak in ext4_xattr_block_cache_find()

In the Linux kernel, the following vulnerability has been resolved: ext4: fix mbcacheentry's erefcnt leak in ext4xattrblockcachefind Syzbot reports a warning as follows: ============================================ WARNING: CPU: 0 PID: 5075 at fs/mbcache.c:419 mbcachedestroy+0x224/0x290 Modules...

kernel: ext4: avoid allocating blocks from corrupted group in ext4_mb_find_by_goal()

A vulnerability was found in the ext4mbfindbygoal function in the Linux kernel. This issue could lead to memory corruption or crashes due to the allocation of blocks from a group with a corrupted block bitmap...

kernel: ext4: fix double-free of blocks due to wrong extents moved_len

A vulnerability was found in the Linux kernel. This issue occurs in the ext4 function, in ext4moveextents, where an error in updating the movedlen variable can lead to double-free of blocks and corrupt block accounting. This could lead to crashes or undefined behavior...

ALSA-2024:5102 Important: kernel-rt security update

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fixes: kernel: efivarfs: force RO when remounting if SetVariable is not supported CVE-2023-52463 kernel: tracing: Restructure traceclockglobal to...

RHEL 8 : kernel (RHSA-2024:5101)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:5101 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: powerpc: Fix access beyond end...

Important: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: powerpc: Fix access beyond end of drmem array CVE-2023-52451 kernel: efivarfs: force RO when remounting if SetVariable is not supported CVE-2023-52463 kernel: tracing: Restructure...

RHEL 8 : kernel-rt (RHSA-2024:5102)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:5102 advisory. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirement...

Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel vulnerabilities (USN-6951-1)

"The remote Ubuntu 18.04 LTS / 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6951-1 advisory. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update...

kernel: ext4: regenerate buddy after block freeing failed if under fc replay

A flaw was found in the Linux kernel's ext4 filesystem related to the fast commit replay process. During this process, blocks that are already marked as free can be incorrectly marked as free again, leading to the corruption of the buddy bitmap, which is used to track free and allocated blocks...

RHEL 9 : kernel (RHSA-2024:5066)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:5066 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: block: null pointer dereferenc...