5410 matches found
CVE-2026-89787
This vulnerability affects the Linux kernel's ext4 filesystem in ext4_search_dir() (fs/ext4/namei.c). For casefolded encrypted directories , ext4 stores an 8-byte hash trailer after the directory entry name. The pre-check in ext4_search_dir() only verifies that the name fits within the block boun...
EUVD-2026-80308
In the Linux kernel, the following vulnerability has been resolved: ext4: check dir entry fits before reading the hash trailer in ext4searchdir For casefolded encrypted directories ext4 stores an 8-byte hash trailer after the name EXT4DIRENTHASHES, at an offset derived from de-namelen. On the...
cve-2017-7374
cve-2017-7374 To trigger the vulnerability, we need a ext4 file system with encryption support and create a encrypted directory...
ffs
FFS - F File System This is a cli tool for searching files like grep that does not use the OS kernel to read files, but reads your disks directly. It is practically useless, but insanely cool. this is just 1.5k lines of C code that: requires sudo only when reading a raw device node e.g. /dev/rdis...
LEAF
Linux Evidence Acquisition Framework LEAF Author: Alexandra Cartwright April, 2022 Description Linux Evidence Acquisition Framework LEAF acquires artifacts and evidence from Linux EXT4 systems, accepting user input to customize the functionality of the tool for easier scalability. Offering severa...
Astra Linux – Vulnerability in Linux 5.10
In the Linux kernel, the following vulnerabilities have been resolved: ext4: fixed a warning in ext4handleinodeextension We encountered the following issues: EXT4-fs error device loop0 in ext4reserveinodewrite:5741: Out of memory EXT4-fs error device loop0: ext4setattr:5462: inode 13: comm...
Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1
In the Linux kernel, the following vulnerability has been resolved: ext4: Avoid allocating blocks from a corrupted group in ext4mbfindbygoal. The logic for checking whether the block bitmap of the group is corrupted is now placed under the protection of the group lock, thereby avoiding the...
Astra Linux – Vulnerability in Linux 5.10
In the Linux kernel, the following vulnerability has been resolved: ext4: fixed a warning in ext4iomapbegin due to a race between bmap and write The issue occurs as follows: ------------ cut here ------------ WARNING: CPU: 3 PID: 9310 at fs/ext4/inode.c:3441 ext4iomapbegin+0x182/0x5d0 RIP:...
Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15
In the Linux kernel, the following vulnerabilities have been resolved: ext4: Fixed a use-after-free issue in ext4findextent when using bigalloc with inline data. Syzbot identified the following issue: - loop0: A change in capacity was detected, from 0 to 2048. - EXT4-fs loop0: The filesystem...
Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1
In the Linux kernel, the following vulnerabilities have been resolved: ext4: fixed an issue where the buffer of extents was freed twice. In ext4exttrytomergeup, the path1.pbh was set to NULL after it was released. Otherwise, it might be released twice. An example of what triggers this is as...
Astra Linux – Vulnerability in Linux 5.10
In the Linux kernel, the following vulnerability has been resolved: ext4: fix invalid free tracking in ext4xattrMoveToBlock In ext4xattrMoveToBlock, the value of the extended attribute that we need to move to an external block may be allocated by kvmalloc if the value is stored in an external...
Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1
In the Linux kernel, the following vulnerability has been resolved: ext4: Convert inline data to extents when truncate exceeds inline size A check has been added to ext4setattr to convert files from inline data storage to extent-based storage when the truncate function increases the file size...
Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15
In the Linux kernel, the following vulnerabilities have been resolved: jbd2: Prevent softlockup in jbd2logdocheckpoint. Both jbd2logdocheckpoint and jbd2journalshrinkcheckpointlist periodically release the jlistlock after processing a batch of buffers to avoid long hold times on the jlistlock...
Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15
In the Linux kernel, the following vulnerability has been resolved: ext4: Allow ext4getgroupinfo to fail. Previously, ext4getgroupinfo would treat an invalid group number as a BUG, since this should theoretically never happen. However, if a malicious attacker modifies the superblock via the block...
Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15
In the Linux kernel, the following vulnerability has been resolved: ext4: fixed memory leaks in ext4fnamesetupfilename,preparelookup. If filename casefolding fails, we will be leaking memory from the fscryptname struct, specifically from the 'cryptobuf.name' member. Make sure we free this memory ...
Astra Linux – Vulnerability in Linux 6.1
In the Linux kernel, the following vulnerability has been resolved: ext4: Do not create EA inodes under the buffer lock The ext4xattrsetentry function creates new EA inodes while holding the buffer lock on the external xattr block. This is problematic because all allocation-related locking...
Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15
In the Linux kernel, the following vulnerability has been resolved: ext4: a potential memory leak has been fixed in ext4fcrecordmodified inode. Since krealloc may return NULL, in this case, state-fcmodifiedinodes may not be freed by krealloc. However, state-fcmodifiedinodes is already set to NULL...
Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1
In the Linux kernel, the following vulnerability has been resolved: ext4: Avoid failures during online resizing due to an overly large flexbgsize. When we perform online resizing on an ext4 filesystem with an excessively large flexbgsize, the following warning is triggered:...
Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15
In the Linux kernel, the following vulnerability has been resolved: ext4: inline: fix len overflow in ext4prepareInlinedata When running the following code on an ext4 filesystem with the inlinedata feature enabled, the following bug will occur. fd = open"file1", ORDWR | OCREAT | OTRUNC, 0666;...