CVE-2026-74358

In the Linux kernel, the following vulnerability has been resolved: ext4: fix fast commit wait/wake bit mapping on 64-bit On 64-bit, ext4 dynamic inode states live in the upper half of iflags, and ext4testinodestate applies the corresponding +32 offset. The fast-commit wait and wake paths...

CVE-2026-74307

In the Linux kernel, the following vulnerability has been resolved: ext4: validate donor file superblock early in EXT4IOCMOVEEXT Reject the EXT4IOCMOVEEXT ioctl early if the donor file does not belong to the same superblock as the original file. Currently, this validation is performed inside...

CVE-2026-74308

In the Linux kernel, the following vulnerability has been resolved: ext4: fix kernel BUG in ext4writeinlinedataend When the data=journal mount option is used, the ext4journalledwriteend function incorrectly calls ext4writeinlinedataend without checking if the EXT4STATEMAYINLINEDATA flag is still...

CVE-2026-72379

In the Linux kernel, the following vulnerability has been resolved: fs: refuse OTMPFILE creation with an unmapped fsuid or fsgid vfstmpfile never checked that the caller's fsuid and fsgid map into the filesystem. On an idmapped mount whose idmapping does not cover the caller's fsu,gid, the -tmpfi...

CVE-2026-74358 ext4: fix fast commit wait/wake bit mapping on 64-bit

In the Linux kernel, the following vulnerability has been resolved: ext4: fix fast commit wait/wake bit mapping on 64-bit On 64-bit, ext4 dynamic inode states live in the upper half of iflags, and ext4testinodestate applies the corresponding +32 offset. The fast-commit wait and wake paths...

EUVD-2026-59505

In the Linux kernel, the following vulnerability has been resolved: ext4: fix fast commit wait/wake bit mapping on 64-bit On 64-bit, ext4 dynamic inode states live in the upper half of iflags, and ext4testinodestate applies the corresponding +32 offset. The fast-commit wait and wake paths...

EUVD-2026-59455

In the Linux kernel, the following vulnerability has been resolved: ext4: fix kernel BUG in ext4writeinlinedataend When the data=journal mount option is used, the ext4journalledwriteend function incorrectly calls ext4writeinlinedataend without checking if the EXT4STATEMAYINLINEDATA flag is still...

CVE-2026-74308 ext4: fix kernel BUG in ext4_write_inline_data_end

In the Linux kernel, the following vulnerability has been resolved: ext4: fix kernel BUG in ext4writeinlinedataend When the data=journal mount option is used, the ext4journalledwriteend function incorrectly calls ext4writeinlinedataend without checking if the EXT4STATEMAYINLINEDATA flag is still...

CVE-2026-74307 ext4: validate donor file superblock early in EXT4_IOC_MOVE_EXT

In the Linux kernel, the following vulnerability has been resolved: ext4: validate donor file superblock early in EXT4IOCMOVEEXT Reject the EXT4IOCMOVEEXT ioctl early if the donor file does not belong to the same superblock as the original file. Currently, this validation is performed inside...

PT-2026-72794

In the Linux kernel, the following vulnerability has been resolved: ext4: fix fast commit wait/wake bit mapping on 64-bit On 64-bit, ext4 dynamic inode states live in the upper half of i flags, and ext4 test inode state applies the corresponding +32 offset. The fast-commit wait and wake paths...

PT-2026-72743

In the Linux kernel, the following vulnerability has been resolved: ext4: validate donor file superblock early in EXT4 IOC MOVE EXT Reject the EXT4 IOC MOVE EXT ioctl early if the donor file does not belong to the same superblock as the original file. Currently, this validation is performed insid...

PT-2026-72744

In the Linux kernel, the following vulnerability has been resolved: ext4: fix kernel BUG in ext4 write inline data end When the data=journal mount option is used, the ext4 journalled write end function incorrectly calls ext4 write inline data end without checking if the EXT4 STATE MAY INLINE DATA...

Security update for the Linux Kernel

The SUSE Linux Enterprise 12 SP5 kernel was updated to fix various security issues: The following security issues were fixed: CVE-2026-31450: ext4: publish jinode after initialization bsc1262618. CVE-2026-31510: Bluetooth: L2CAP: Fix null-ptr-deref on l2capsockreadycb bsc1262603. CVE-2026-31624:...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ext4: xattr: fixed a null pointer derefrence in ext4raw inode If ext4getinodeloc fails e.g., if it returns -EFSCORRUPTED, iloc.bh will remain set to NULL. Since ext4xattr inodedecrefall lacks error checking, this will lead to a...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ext4: Fixed a memory leak in ext4extshiftextents. In ext4extshiftextents, if the extent is NULL during the while loop, the function returns immediately without releasing the path obtained via ext4findextent. This leads to a memor...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ext4: Do not zero the entire extent if EXT4EXTDATAPARTIALVALID1 is true. When allocating initialized blocks from a large unwritten extent, or when splitting an unwritten extent during end I/O and converting it to an initialized...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ext4: Filesystems without the casefold feature cannot be mounted with siphash. When mounting the ext4 filesystem, if the default hash version is set to DXHASHSIPHASH, but the casefold feature is not enabled, exit the mounting...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: In ext4, the order of execution of functions ext4percpuparaminit and ext4mbinit has been changed. When running kvm-xfstests -c ext4/1k -C 1 generic/383 with the DOUBLECHECK macro defined, a panic occurs as follows:...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: ext4: Fixed an out-of-bound read in ext4xattrinodedecrefall. The issue is as follows: BUG: KASAN: Use-after-free in ext4xattr inodedecrefall+0x6ff/0x790. A read of size 4 was performed at address ffff88807b003000 by the task...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ext4: Refresh the inline data size before write operations The cached ei-iInlineSize can become stale between the initial size check and when ext4updateInlineData/ext4createInlineData use it. Although ext4getmaxInlineSize reads t...