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 Linux kernel that stems from ext4 not properly handling reserved GDT blocks when resizing the filesystem, which could lead to null pointer...

PT-2025-8348

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to the version that includes the fix for the race condition between ext4 write and ext4 convert inline data Description A race condition exists in the Linux kernel between ext4 write and ext4 convert inline data,...

PT-2025-8099 · Linux +2 · Linux Kernel +2

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A bug in the Linux kernel has been resolved, specifically in the ext4 file system. The issue occurs when pages are dirtied without properly warning the file system in advance, which ca...

Amazon Linux 2 : kernel (ALASKERNEL-5.15-2025-063)

The version of kernel installed on the remote host is prior to 5.15.178-120.178. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.15-2025-063 advisory. Integer Overflow or Wraparound vulnerability in Linux kernel on x86 and ARM md, raid, raid5 modules allo...

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 the ext4mbmarkbb function not properly handling block group boundaries in the flexbg and fastcommit cases,...

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 ext4handleinodeextension not handling out of memory correctly, which could result in a kernel warning...

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 a bug triggered when the ext4 driver dirty pages without notifying the filesystem, which could lead to data...

CVE-2022-49352: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ext4: fix warning in ext4handleinodeextension We got issue as follows: EXT4-fs error device loop0 in ext4reserveinodewrite:5741: Out of memory EXT4-fs error device loop0: ext4setattr:5462: inode 13: comm syz-executor.0:...

CVE-2022-49349: Use After Free

In the Linux kernel, the following vulnerability has been resolved: ext4: fix use-after-free in ext4renamedirprepare We got issue as follows: EXT4-fs loop0: mounted filesystem without journal. Opts: ,errors=continue ext4getfirstdirblock: bh-bdata=0xffff88810bee6000 len=34478 ext4getfirstdirblock:...

CVE-2022-49347: Reachable Assertion

In the Linux kernel, the following vulnerability has been resolved: ext4: fix bugon in ext4writepages we got issue as follows: EXT4-fs error device loop0: ext4mbgeneratebuddy:1141: group 0, block bitmap and bg descriptor inconsistent: 25 vs 31513 free cls ------------ cut here ------------ kernel...

CVE-2022-49343: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ext4: avoid cycles in directory h-tree A maliciously corrupted filesystem can contain cycles in the h-tree stored inside a directory. That can easily lead to the kernel corrupting tree nodes that were already verified under its...

CVE-2022-49174: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ext4: fix ext4mbmarkbb with flexbg with fastcommit In case of flexbg feature which is by default enabled, extents for any given inode might span across blocks from two different block group. ext4mbmarkbb only reads the bufferhead...

CVE-2022-49171: Reachable Assertion

In the Linux kernel, the following vulnerability has been resolved: ext4: don't BUG if someone dirty pages without asking ext4 first unpinuserpagesremote is dirtying pages without properly warning the file system in advance. A related race was noted by Jan Kara in 20181; however, more recently...

CVE-2022-49707: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: ext4: add reserved GDT blocks check We capture a NULL pointer issue when resizing a corrupt ext4 image which is freshly clear resizeinode feature not run e2fsck. It could be simply reproduced by following steps. The problem is...

CVE-2022-49708: Reachable Assertion

In the Linux kernel, the following vulnerability has been resolved: ext4: fix bugon ext4mbuseinodepa Hulk Robot reported a BUGON: ================================================================== kernel BUG at fs/ext4/mballoc.c:3211! ... RIP: 0010:ext4mbmarkdiskspaceused.cold+0x85/0x136f ... Cal...

CVE-2022-49348: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ext4: filter out EXT4FCREPLAY from on-disk superblock field sstate The EXT4FCREPLAY bit in sbi-smountstate is used to indicate that we are in the middle of replay the fast commit journal. This was actually a mistake, since the...

CVE-2022-49408: Missing Release of Memory after Effective Lifetime

In the Linux kernel, the following vulnerability has been resolved: ext4: fix memory leak in parseapplysbmountoptions If processing the on-disk mount options fails after any memory was allocated in the ext4fscontext, e.g. sqfnames, then this memory is leaked. Fix this by calling ext4fcfree instea...

CVE-2022-49414: Concurrent Execution using Shared Resource with Improper Synchronization

In the Linux kernel, the following vulnerability has been resolved: ext4: fix race condition between ext4write and ext4convertinlinedata Hulk Robot reported a BUGON: ================================================================== EXT4-fs error device loop3: ext4mbgeneratebuddy:805: group 0,...

CVE-2022-49409: Reachable Assertion

In the Linux kernel, the following vulnerability has been resolved: ext4: fix bugon in estreesearch Hulk Robot reported a BUGON: ================================================================== kernel BUG at fs/ext4/extentsstatus.c:199! ... RIP: 0010:ext4esend fs/ext4/extentsstatus.c:199 inline...

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 a possible race condition in ext4 between ext4write and ext4convertinlinedata...