CVE-2022-50082 ext4: fix warning in ext4_iomap_begin as race between bmap and write

In the Linux kernel, the following vulnerability has been resolved: ext4: fix warning in ext4iomapbegin as race between bmap and write We got issue as follows: ------------ cut here ------------ WARNING: CPU: 3 PID: 9310 at fs/ext4/inode.c:3441 ext4iomapbegin+0x182/0x5d0 RIP:...

CVE-2022-50021 ext4: block range must be validated before use in ext4_mb_clear_bb()

In the Linux kernel, the following vulnerability has been resolved: ext4: block range must be validated before use in ext4mbclearbb Block range to free is validated in ext4freeblocks using ext4inodeblockvalid and then it's passed to ext4mbclearbb. However in some situations on bigalloc file syste...

CVE-2022-50021

CVE-2022-50021 documents a Linux kernel ext4 bug where a validated block range for freeing blocks could be altered after validation on bigalloc filesystems, potentially triggering a kernel BUG in ext4_free_blocks() / ext4_mb_clear_bb(). The issue arises because the range may be adjusted after val...

CVE-2022-50021 ext4: block range must be validated before use in ext4_mb_clear_bb()

In the Linux kernel, the following vulnerability has been resolved: ext4: block range must be validated before use in ext4mbclearbb Block range to free is validated in ext4freeblocks using ext4inodeblockvalid and then it's passed to ext4mbclearbb. However in some situations on bigalloc file syste...

CVE-2022-50021

In the Linux kernel, the following vulnerability has been resolved: ext4: block range must be validated before use in ext4mbclearbb Block range to free is validated in ext4freeblocks using ext4inodeblockvalid and then it's passed to ext4mbclearbb. However in some situations on bigalloc file syste...

CVE-2022-50020 ext4: avoid resizing to a partial cluster size

In the Linux kernel, the following vulnerability has been resolved: ext4: avoid resizing to a partial cluster size This patch avoids an attempt to resize the filesystem to an unaligned cluster boundary. An online resize to a size that is not integral to cluster size results in the last iteration...

CVE-2022-50020

In the Linux kernel, the following vulnerability has been resolved: ext4: avoid resizing to a partial cluster size This patch avoids an attempt to resize the filesystem to an unaligned cluster boundary. An online resize to a size that is not integral to cluster size results in the last iteration...

CVE-2022-50020 ext4: avoid resizing to a partial cluster size

In the Linux kernel, the following vulnerability has been resolved: ext4: avoid resizing to a partial cluster size This patch avoids an attempt to resize the filesystem to an unaligned cluster boundary. An online resize to a size that is not integral to cluster size results in the last iteration...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from an unverified block range in the ext4mbclearbb function...

PT-2025-26008 · Ext4 +1 · Ext4 +1

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A race condition between bmap and write operations in the ext4 filesystem can cause a warning in ext4 iomap begin. This issue occurs when the bmap and write operations are executed...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ext4: The statement “goto right label ‘outmmapsem’” in ext4setattr has been removed. Otherwise, if ext4 inodeattachjinode fails, a hung task will occur because the function filemapinvalidateunlock is not called to unlock...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ext4: ignore xattrs entries past the “end” entry. Once inside ‘ext4xattrinodedecrefall’, we should ignore xattrs entries that are located after the “end” entry. This fixes the following issue reported by KASAN: BUG: KASAN:...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ext4: Fixed an off-by-one error in the dosplit function. Syzkaller identified a use-after-free issue in ext4insertdentry, which was caused by out-of-bounds accesses due to incorrect splitting in dosplit. BUG: KASAN: Use-after-fre...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ext4: Fixed an out-of-bounds read when checking .dotdot dir. Mounting a corrupted filesystem with a directory containing a . dir entry where reclen == block size results in an out-of-bounds read later, when the corrupted director...

CLSA-2025-1749568993 kernel: Fix of 24 CVEs

vsock: Keep the binding until socket destruction CVE-2025-21756 - mt76: fix use-after-free by removing a non-RCU wcid pointer CVE-2022-49328 - bpf, testrun: Fix alignment problem in bpfprogtestrunskb CVE-2022-49840 - ASoC: core: Fix use-after-free in sndsocexit CVE-2022-49842 - net: sched: Fix...

Important: kernel6.12

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: btrfs: do proper folio cleanup when cowfilerange failed CVE-2024-57976 In the Linux kernel, the following vulnerability has been resolved: kernel: be more careful about dupmmap failures and uprobe registering...

Important: kernel6.12

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: bpf: track changespktdata property for global functions CVE-2024-58098 In the Linux kernel, the following vulnerability has been resolved: bpf: check changespktdata property for extension programs CVE-2024-58100 I...

Important: kernel-livepatch-6.1.130-139.222

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: sched/fair: Fix potential memory corruption in childcfsrqonlist CVE-2025-21919 In the Linux kernel, the following vulnerability has been resolved: vlan: enforce underlying device type CVE-2025-21920 In the Linux...

Important: kernel-livepatch-6.1.131-143.221

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: nvme-tcp: fix potential memory corruption in nvmetcprecvpdu CVE-2025-21927 In the Linux kernel, the following vulnerability has been resolved: ext4: fix OOB read when checking dotdot dir CVE-2025-37785 Affected...

Important: kernel-livepatch-6.1.132-147.221

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: nvme-tcp: fix potential memory corruption in nvmetcprecvpdu CVE-2025-21927 In the Linux kernel, the following vulnerability has been resolved: ext4: fix OOB read when checking dotdot dir CVE-2025-37785 Affected...