CVE-2023-53091: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: ext4: update sjournalinum if it changes after journal replay When mounting a crafted ext4 image, sjournalinum may change after journal replay, which is obviously unreasonable because we have successfully loaded and replayed the...

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 ext4xattrdeleteinode causing a task to hang...

PT-2025-18901

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A issue in the Linux kernel has been identified, specifically in the ext4 file system, where possible corruption can occur when moving a directory. This happens because when renaming a...

CVE-2023-53143: Off-by-one Error

In the Linux kernel, the following vulnerability has been resolved: ext4: fix another off-by-one fsmap error on 1k block filesystems Apparently syzbot figured out that issuing this FSMAP call: struct fsmaphead cmd = .fmhcount = ...; .fmhkeys = .fmrdevice = / ext4 dev /, .fmrphysical = 0, ,...

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 originates from a memory allocation warning triggered when updating inline data in the ext4 file system...

CVE-2023-53101: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ext4: zero idisksize when initializing the bootloader inode If the boot loader inode has never been used before, the EXT4IOCSWAPBOOT inode will initialize it, including setting the isize to 0. However, if the "never before used"...

DEBIAN-CVE-2022-49879

In the Linux kernel, the following vulnerability has been resolved: ext4: fix BUGON when directory entry has invalid reclen The reclen field in the directory entry has to be a multiple of 4. A corrupted filesystem image can be used to hit a BUG in ext4reclentodisk, called from makeindexeddir...

DEBIAN-CVE-2022-49880

In the Linux kernel, the following vulnerability has been resolved: ext4: fix warning in 'ext4dareleasespace' Syzkaller report issue as follows: EXT4-fs loop0: Free/Dirty block details EXT4-fs loop0: freeblocks=0 EXT4-fs loop0: dirtyblocks=0 EXT4-fs loop0: Block reservation details EXT4-fs loop0:...

CVE-2022-49879

In the Linux kernel, the following vulnerability has been resolved: ext4: fix BUGON when directory entry has invalid reclen The reclen field in the directory entry has to be a multiple of 4. A corrupted filesystem image can be used to hit a BUG in ext4reclentodisk, called from makeindexeddir...

CVE-2022-49880

In the Linux kernel, the following vulnerability has been resolved: ext4: fix warning in 'ext4dareleasespace' Syzkaller report issue as follows: EXT4-fs loop0: Free/Dirty block details EXT4-fs loop0: freeblocks=0 EXT4-fs loop0: dirtyblocks=0 EXT4-fs loop0: Block reservation details EXT4-fs loop0:...

UBUNTU-CVE-2022-49879

In the Linux kernel, the following vulnerability has been resolved: ext4: fix BUGON when directory entry has invalid reclen The reclen field in the directory entry has to be a multiple of 4. A corrupted filesystem image can be used to hit a BUG in ext4reclentodisk, called from makeindexeddir...

CVE-2022-49880 ext4: fix warning in 'ext4_da_release_space'

In the Linux kernel, the following vulnerability has been resolved: ext4: fix warning in 'ext4dareleasespace' Syzkaller report issue as follows: EXT4-fs loop0: Free/Dirty block details EXT4-fs loop0: freeblocks=0 EXT4-fs loop0: dirtyblocks=0 EXT4-fs loop0: Block reservation details EXT4-fs loop0:...

CVE-2022-49879 ext4: fix BUG_ON() when directory entry has invalid rec_len

In the Linux kernel, the following vulnerability has been resolved: ext4: fix BUGON when directory entry has invalid reclen The reclen field in the directory entry has to be a multiple of 4. A corrupted filesystem image can be used to hit a BUG in ext4reclentodisk, called from makeindexeddir...

CVE-2022-49880 ext4: fix warning in 'ext4_da_release_space'

In the Linux kernel, the following vulnerability has been resolved: ext4: fix warning in 'ext4dareleasespace' Syzkaller report issue as follows: EXT4-fs loop0: Free/Dirty block details EXT4-fs loop0: freeblocks=0 EXT4-fs loop0: dirtyblocks=0 EXT4-fs loop0: Block reservation details EXT4-fs loop0:...

CVE-2022-49879 ext4: fix BUG_ON() when directory entry has invalid rec_len

In the Linux kernel, the following vulnerability has been resolved: ext4: fix BUGON when directory entry has invalid reclen The reclen field in the directory entry has to be a multiple of 4. A corrupted filesystem image can be used to hit a BUG in ext4reclentodisk, called from makeindexeddir...

CVE-2022-49880 ext4: fix warning in 'ext4_da_release_space'

In the Linux kernel, the following vulnerability has been resolved: ext4: fix warning in 'ext4dareleasespace' Syzkaller report issue as follows: EXT4-fs loop0: Free/Dirty block details EXT4-fs loop0: freeblocks=0 EXT4-fs loop0: dirtyblocks=0 EXT4-fs loop0: Block reservation details EXT4-fs loop0:...

CVE-2022-49880

CVE-2022-49880 : Linux kernel ext4 inline-data migration may trigger a reliable warning in ext4_da_release_space when a writeback path releases space with to_free=1 but i_reserved_data_blocks==0. The issue is resolved by forbidding inodes with inline data from migration (ext4 inline data handling...

CVE-2022-49879

CVE-2022-49879 affects the Linux kernel ext4 code. A corrupted directory entry where rec_len is invalid (not a multiple of 4) can cause a kernel BUG() in ext4_rec_len_to_disk() called from make_indexed_dir(). The fix adds a validation step via ext4_check_dir_entry(), returning -EFSCORRUPTED for i...

CVE-2022-49879

In the Linux kernel, the following vulnerability has been resolved: ext4: fix BUGON when directory entry has invalid reclen The reclen field in the directory entry has to be a multiple of 4. A corrupted filesystem image can be used to hit a BUG in ext4reclentodisk, called from makeindexeddir...

CVE-2022-49880

In the Linux kernel, the following vulnerability has been resolved: ext4: fix warning in 'ext4dareleasespace' Syzkaller report issue as follows: EXT4-fs loop0: Free/Dirty block details EXT4-fs loop0: freeblocks=0 EXT4-fs loop0: dirtyblocks=0 EXT4-fs loop0: Block reservation details EXT4-fs loop0:...