CVE-2022-48712 ext4: fix error handling in ext4_fc_record_modified_inode()

In the Linux kernel, the following vulnerability has been resolved: ext4: fix error handling in ext4fcrecordmodifiedinode Current code does not fully takes care of krealloc error case, which could lead to silent memory corruption or a kernel bug. This patch fixes that. Also it cleans up some...

CVE-2021-47406

In the Linux kernel, the following vulnerability has been resolved: ext4: add error checking to ext4extreplaysetiblocks If the call to ext4mapblocks fails due to an corrupted file system, ext4extreplaysetiblocks can get stuck in an infinite loop. This could be reproduced by running generic/526 wi...

CVE-2024-26773

In the Linux kernel, the following vulnerability has been resolved: ext4: avoid allocating blocks from corrupted group in ext4mbtrybestfound Determine if the group block bitmap is corrupted before using acbex in ext4mbtrybestfound to avoid allocating blocks from a group with a corrupted block...

CVE-2024-26773

CVE-2024-26773: The Linux kernel ext4 block allocator vulnerability is resolved. The fix prevents allocating blocks from a group whose block bitmap is corrupted during concurrent operations by verifying the group bitmap integrity before using ac_b_ex in ext4_mb_try_best_found(), and by guarding t...

CVE-2024-26772 ext4: avoid allocating blocks from corrupted group in ext4_mb_find_by_goal()

In the Linux kernel, the following vulnerability has been resolved: ext4: avoid allocating blocks from corrupted group in ext4mbfindbygoal Places the logic for checking if the group's block bitmap is corrupt under the protection of the group lock to avoid allocating blocks from the group with a...

CVE-2024-26704 ext4: fix double-free of blocks due to wrong extents moved_len

In the Linux kernel, the following vulnerability has been resolved: ext4: fix double-free of blocks due to wrong extents movedlen In ext4moveextents, movedlen is only updated when all moves are successfully executed, and only discards originode and donorinode preallocations when movedlen is not...

USN-6700-2 linux-aws vulnerabilities

It was discovered that the Layer 2 Tunneling Protocol L2TP implementation in the Linux kernel contained a race condition when releasing PPPoL2TP sockets in certain conditions, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service system crash or...

CVE-2021-47117

In the Linux kernel, the following vulnerability has been resolved: ext4: fix bug on in ext4escacheextent as ext4splitextentat failed We got follow bugon when run fsstress with injecting IO fault: 130747.323114 kernel BUG at fs/ext4/extentsstatus.c:762! 130747.323117 Internal error: Oops - BUG: 0...

CVE-2021-46945 ext4: always panic when errors=panic is specified

In the Linux kernel, the following vulnerability has been resolved: ext4: always panic when errors=panic is specified Before commit 014c9caa29d3 "ext4: make ext4abort use ext4error", the following series of commands would trigger a panic: 1. mount /dev/sda -o ro,errors=panic test 2. mount /dev/sd...

CVE-2024-26601

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...

CVE-2024-26601 ext4: regenerate buddy after block freeing failed if under fc replay

In the Linux kernel, the following vulnerability has been resolved: ext4: regenerate buddy after block freeing failed if under fc replay This mostly reverts commit 6bd97bf273bd "ext4: remove redundant mbregeneratebuddy" and reintroduces mbregeneratebuddy. Based on code in mbfreeblocks, fast commi...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: ext4: block range must be validated before use in ext4mbclearbb CVE-2022-50021 A use-after-free vulnerability in the Linux Kernel Performance Events system can be exploited to achieve local privilege escalation. T...

Medium: kernel

Issue Overview: bpf: incorrect verifier pruning due to missing register precision taints, which may lead to out-of-band read/write access due to an incorrect verifier conclusion. CVE-2023-2163 A use-after-free vulnerability was found in the Linux kernel's ext4 filesystem in the way it handled the...

SUSE CVE-2012-2100

The ext4fillflexinfo function in fs/ext4/super.c in the Linux kernel before 3.2.2, on the x86 platform and unspecified other platforms, allows user-assisted remote attackers to trigger inconsistent filesystem-groups data and possibly cause a denial of service via a malformed ext4 filesystem...

SUSE CVE-2020-8992

ext4protectreservedinode in fs/ext4/blockvalidity.c in the Linux kernel through 5.5.3 allows attackers to cause a denial of service soft lockup via a crafted journal size...

openSUSE: Security Advisory for udisks2 (SUSE-SU-2022:3154-1)

The remote host is missing an update for the Copyright C 2022 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; you can...

Nutanix AOS : Multiple Vulnerabilities (NXSA-AOS-5.19.2)

The version of AOS installed on the remote host is prior to 5.19.2. It is, therefore, affected by multiple vulnerabilities as referenced in the NXSA-AOS-5.19.2 advisory. - Perl before 5.30.3 has an integer overflow related to mishandling of a PLregkindOPn == NOTHING situation. A crafted regular...

Important: kernel-livepatch-4.14.173-137.228

Issue Overview: In the Linux kernel 5.0.21, a setxattr operation, after a mount of a crafted ext4 image, can cause a slab-out-of-bounds write access because of an ext4xattrsetentry use-after-free in fs/ext4/xattr.c when a large oldsize value is used in a memset call. CVE-2019-19319 Affected...

USN-4318-1 linux, linux-hwe vulnerabilities

Al Viro discovered that the vfs layer in the Linux kernel contained a use- after-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly expose sensitive information kernel memory. CVE-2020-8428 Gustavo Romero and Paul Mackerras discovered that th...

UBUNTU-CVE-2019-19447

In the Linux kernel 5.0.21, mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lead to a use-after-free in ext4putsuper in fs/ext4/super.c, related to dumporphanlist in fs/ext4/super.c...