EUVD-2026-76488

In the Linux kernel, the following vulnerability has been resolved: dm-era: fix shadowed superblock leak on take-snap failure metadatatakesnap bumps the live superblock refcount and then dmtmshadowblock allocates a new block for the metadata snapshot. If the subsequent dmsmincblock of...

PT-2026-90273

In the Linux kernel, the following vulnerability has been resolved: md: do overflow check for sb-bblog shift in super 1 load In super 1 load, sb-bblog shift is an u8 type value loaded from on- disk superblock. It is used for badblocks API badblocks set by the following sequence, 1930...

PT-2026-90259

In the Linux kernel, the following vulnerability has been resolved: sunrpc: fix use-after-free in rpc clnt handle event and rpc clnt remove pipedir Normal client creation goes through rpc setup pipedir, which records clnt-pipefs sb, but the mount-event path in rpc clnt handle event calls rpc setu...

CVE-2026-79775

A flaw was found in rclone. The archive backend's SquashFS parser fails to validate attacker-controlled superblock and metadata values before use. An attacker who can place or modify a malicious SquashFS image in storage exposed through an rclone :archive: remote can trigger multiple...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098992)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098992 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: tracepoints: get correct superblock from dentry in event btrfssyncfile If overlay is used ...

Linux Distros Unpatched Vulnerability : CVE-2026-79775

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - rclone versions = v1.72.0 and = v1.74.4 fixed in v1.75.0 contain multiple denial-of-service vulnerabilities in the archive backend's SquashFS parser, which reli...

CVE-2026-13478

The Zephyr ext2 filesystem driver validates the on-disk block bitmap in ext2initfs subsys/fs/ext2/ext2impl.c by passing fsblocks = sblockscount - sfirstdatablock to ext2bitmapcountset. That helper subsys/fs/ext2/ext2bitmap.c treats its argument as a number of bits and reads one bitmap byte per...

CVE-2026-13478 Out-of-bounds read in Zephyr ext2 block-bitmap validation from a crafted s_blocks_count

The Zephyr ext2 filesystem driver validates the on-disk block bitmap in ext2initfs subsys/fs/ext2/ext2impl.c by passing fsblocks = sblockscount - sfirstdatablock to ext2bitmapcountset. That helper subsys/fs/ext2/ext2bitmap.c treats its argument as a number of bits and reads one bitmap byte per...

CVE-2026-13478 Out-of-bounds read in Zephyr ext2 block-bitmap validation from a crafted s_blocks_count

The Zephyr ext2 filesystem driver validates the on-disk block bitmap in ext2initfs subsys/fs/ext2/ext2impl.c by passing fsblocks = sblockscount - sfirstdatablock to ext2bitmapcountset. That helper subsys/fs/ext2/ext2bitmap.c treats its argument as a number of bits and reads one bitmap byte per...

CVE-2026-13478

CVE-2026-13478 is an out-of-bounds read in the Zephyr RTOS ext2 filesystem driver. During mount, ext2_init_fs() passes the superblock's s_blocks_count (unbounded) to ext2_bitmap_count_set(), which then reads up to ~512 MB past the single block-size bitmap buffer when a crafted image specifies an ...

EUVD-2026-65599

The Zephyr ext2 filesystem driver validates the on-disk block bitmap in ext2initfs subsys/fs/ext2/ext2impl.c by passing fsblocks = sblockscount - sfirstdatablock to ext2bitmapcountset. That helper subsys/fs/ext2/ext2bitmap.c treats its argument as a number of bits and reads one bitmap byte per...

EUVD-2026-65292

The Zephyr ext2 filesystem driver fails to validate the slogblocksize field of the on-disk superblock when mounting a filesystem. ext2verifydisksuperblock in subsys/fs/ext2/ext2impl.c checks the magic number, revision, inode size and group counts, but never bounds slogblocksize. On a successful...

CVE-2026-13215

The Zephyr RTOS ext2 filesystem driver fails to bounds-check the s_log_block_size field in ext2_verify_disk_superblock() (subsys/fs/ext2/ext2_impl.c). A crafted value causes the computed block size (1024 <

CVE-2026-13215 Zephyr ext2 mount: unvalidated superblock block size causes out-of-bounds write from a crafted filesystem image

The Zephyr ext2 filesystem driver fails to validate the slogblocksize field of the on-disk superblock when mounting a filesystem. ext2verifydisksuperblock in subsys/fs/ext2/ext2impl.c checks the magic number, revision, inode size and group counts, but never bounds slogblocksize. On a successful...

CVE-2026-13215 Zephyr ext2 mount: unvalidated superblock block size causes out-of-bounds write from a crafted filesystem image

The Zephyr ext2 filesystem driver fails to validate the slogblocksize field of the on-disk superblock when mounting a filesystem. ext2verifydisksuperblock in subsys/fs/ext2/ext2impl.c checks the magic number, revision, inode size and group counts, but never bounds slogblocksize. On a successful...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: EXT4: Filter out the EXT4FCREPLAY bit from the on-disk superblock’s sstate field. The EXT4FCREPLAY bit in sbi-smountstate is used to indicate that we are currently replaying the fast commit journal. This was actually a mistake, a...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: gfs2: Check sbbsizeshift after reading the superblock. Fuzzers often modify sbbsizeshift, but in reality it’s very unlikely that this field would be corrupted on its own. Nevertheless, it should still be checked to avoid potentia...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15

In the Linux kernel, the following vulnerability has been resolved: nilfs2: Fixed an underflow in calculations for the second superblock position. The macro NILFSSB2OFFSETBYTES calculates the position of the second superblock. This calculation results in an underflow when the devicesize argument ...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: nilfs2: Protect references to superblock parameters exposed in sysfs The superblock buffers of nilfs2 can not only be overwritten at runtime for modifications/repairs, but they are also regularly swapped, replaced during resizing...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ext4: Avoid resizing to a partial cluster size This patch prevents attempts to resize the filesystem to a cluster boundary that is not an integer multiple of the cluster size. Online resizing to a size that is not integral to the...