23 matches found
Linux kernel 安全漏洞
The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the incorrect setting of the EXT4GETBLOCKSCONVERT flag when ext4 divides a partition without...
Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1
In the Linux kernel, the following vulnerability has been resolved: sparc: Fixed inaccurate exception reporting in copyfromtouser for UltraSPARC III. Anthony Yznaga discovered that a bug in the ext4 code, where large amounts of data were allowed, resulted from copyfromuser returning impossibly...
Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1
In the Linux kernel, the following vulnerability has been resolved: ext4: use of a stale path after allocation in ext4extinsertextent As Ojaswin mentioned in the link, in ext4extinsertextent, if the path is reallocated during ext4extcreatenewleaf, we will use a stale path, leading to a...
Unity Linux 20.1070e Security Update: kernel (UTSA-2026-000392)
The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-000392 advisory. A memory out-of-bounds read flaw was found in the Linux kernel before 5.9-rc2 with the ext3/ext4 file system, in the way it accesses a directory with broken indexing...
kernel: ext4: fix undefined behavior in bit shift for ext4_check_flag_values
A vulnerability was identified in the Linux kernel's ext4 filesystem implementation due to a flaw in how it processes filesystem metadata. An attacker with local privileges could create a malicious ext4 filesystem image to trigger this issue. When the system attempts to mount this malicious image...
CVE-2025-40124 sparc: fix accurate exception reporting in copy_{from_to}_user for UltraSPARC III
In the Linux kernel, the following vulnerability has been resolved: sparc: fix accurate exception reporting in copyfromtouser for UltraSPARC III Anthony Yznaga tracked down that a BUGON in ext4 code with large folios enabled resulted from copyfromuser returning impossibly large values greater tha...
EUVD-2020-6463
Malware in sbrugna...
Linux Distros Unpatched Vulnerability : CVE-2023-30549
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Apptainer is an open source container platform for Linux. There is an ext4 use-after-free flaw that is exploitable through versions of Apptainer 1.1.0 and...
kernel: ext4: ignore xattrs past end
A use-after-free vulnerability has been discovered in the Linux kernel, specifically within the ext4xattrinodedecrefall function related to the ext4 filesystem's extended attributes. An attacker could exploit this flaw by providing a specially crafted payload, leading to a denial of service...
DEBIAN-CVE-2024-56780
In the Linux kernel, the following vulnerability has been resolved: quota: flush quotareleasework upon quota writeback One of the paths quota writeback is called from is: freezesuper syncfilesystem ext4syncfs dquotwritebackdquots Since we currently don't always flush the quotareleasework queue in...
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...
DEBIAN-CVE-2024-50191
In the Linux kernel, the following vulnerability has been resolved: ext4: don't set SBRDONLY after filesystem errors When the filesystem is mounted with errors=remount-ro, we were setting SBRDONLY flag to stop all filesystem modifications. We knew this misses proper locking sb-sumount and does no...
UBUNTU-CVE-2024-39276
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...
DEBIAN-CVE-2024-26772
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...
kernel: 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...
PT-2025-49618
Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.0.0-next-20221007-dirty 349 Description A flaw exists in the Linux kernel related to the handling of boot loader inodes. Specifically, a bug in the es tree search function within the ext4 filesystem can occur...
grub2: Integer overflow in grub_ext2_read_link leads to heap-based buffer overflow
A flaw was found in grub2 while handling symlink on ext filesystems. A filesystem containing a symbolic link with an inode size of UINT32MAX causes an arithmetic overflow, leading to a zero-sized memory allocation with a subsequent heap-based buffer overflow. The highest threat from this...
grub2: Integer overflow in grub_ext2_read_link leads to heap-based buffer overflow
A flaw was found in grub2 while handling symlink on ext filesystems. A filesystem containing a symbolic link with an inode size of UINT32MAX causes an arithmetic overflow, leading to a zero-sized memory allocation with a subsequent heap-based buffer overflow. The highest threat from this...
ALPINE-CVE-2020-14311
There is an issue with grub2 before version 2.06 while handling symlink on ext filesystems. A filesystem containing a symbolic link with an inode size of UINT32MAX causes an arithmetic overflow leading to a zero-sized memory allocation with subsequent heap-based buffer overflow...
grub2: Integer overflow in grub_ext2_read_link leads to heap-based buffer overflow
A flaw was found in grub2 while handling symlink on ext filesystems. A filesystem containing a symbolic link with an inode size of UINT32MAX causes an arithmetic overflow, leading to a zero-sized memory allocation with a subsequent heap-based buffer overflow. The highest threat from this...