48 matches found
CVE-2026-80855
A flaw was found in the Linux kernel's Filesystem in Userspace FUSE component. A local user could exploit this by opening a file with the OTRUNC flag, which attempts to truncate the file. If a signal interrupts the Direct Access DAX page invalidation process during this operation, a lock can be...
CentOS Linux 6 [TuxCare] Security Update: kernel / kernel-abi-whitelists / kernel-debug / kernel-debug-devel / etc Multiple Vulnerabilities (CENTOS6:CLSA-2026:1787292891)
The CentOS Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS6:CLSA-2026:1787292891 advisory. - In the Linux kernel, the following vulnerability has been resolved: NFSv4: include MAYWRITE in open permission mask for OTRUNC POSIX...
MGASA-2026-0462 Updated fuse-overlayfs package fixes security vulnerabilities
fuse-overlayfs release-1.x preserves SUID/SGID bits after truncate/openOTRUNC. CVE-2026-52791 Operations on hardlinked lower-layer files resolving to the wrong layer. CVE-2026-77478...
podman: podman: Quadlet install --replace non-truncating write retains removed host-access directives
The 'podman quadlet install --replace' command opens the existing destination file with OCREATE|OWRONLY but omits OTRUNC. When the initial reflink copy attempt fails common on non-reflink-capable filesystems including many RHEL default XFS configurations, the fallback in ReflinkOrCopy uses io.Cop...
SUSE CVE-2026-89639
In the Linux kernel, the following vulnerability has been resolved: cifs: use cifsinvalidatecache in cifsdotruncate for OTRUNC cifsdotruncate is invoked from cifsopen without irwsem, so it cannot use cifsresizefilelocked to perform a proper fscache cookie resize. Instead, add cifsinvalidatecache...
DEBIAN-CVE-2026-89639
In the Linux kernel, the following vulnerability has been resolved: cifs: use cifsinvalidatecache in cifsdotruncate for OTRUNC cifsdotruncate is invoked from cifsopen without irwsem, so it cannot use cifsresizefilelocked to perform a proper fscache cookie resize. Instead, add cifsinvalidatecache...
CVE-2026-89639
In the Linux kernel, the following vulnerability has been resolved: cifs: use cifsinvalidatecache in cifsdotruncate for OTRUNC cifsdotruncate is invoked from cifsopen without irwsem, so it cannot use cifsresizefilelocked to perform a proper fscache cookie resize. Instead, add cifsinvalidatecache...
CVE-2026-89639
In the Linux kernel, the following vulnerability has been resolved: cifs: use cifsinvalidatecache in cifsdotruncate for OTRUNC cifsdotruncate is invoked from cifsopen without irwsem, so it cannot use cifsresizefilelocked to perform a proper fscache cookie resize. Instead, add cifsinvalidatecache...
UBUNTU-CVE-2026-89639
In the Linux kernel, the following vulnerability has been resolved: cifs: use cifsinvalidatecache in cifsdotruncate for OTRUNC cifsdotruncate is invoked from cifsopen without irwsem, so it cannot use cifsresizefilelocked to perform a proper fscache cookie resize. Instead, add cifsinvalidatecache...
CVE-2026-89639
In the Linux kernel, the following vulnerability has been resolved: cifs: use cifsinvalidatecache in cifsdotruncate for OTRUNC cifsdotruncate is invoked from cifsopen without irwsem, so it cannot use cifsresizefilelocked to perform a proper fscache cookie resize. Instead, add cifsinvalidatecache...
EUVD-2026-76551
In the Linux kernel, the following vulnerability has been resolved: cifs: use cifsinvalidatecache in cifsdotruncate for OTRUNC cifsdotruncate is invoked from cifsopen without irwsem, so it cannot use cifsresizefilelocked to perform a proper fscache cookie resize. Instead, add cifsinvalidatecache...
CVE-2026-89639 cifs: use cifs_invalidate_cache() in cifs_do_truncate() for O_TRUNC
In the Linux kernel, the following vulnerability has been resolved: cifs: use cifsinvalidatecache in cifsdotruncate for OTRUNC cifsdotruncate is invoked from cifsopen without irwsem, so it cannot use cifsresizefilelocked to perform a proper fscache cookie resize. Instead, add cifsinvalidatecache...
CVE-2026-89639
This vulnerability affects the Linux kernel's CIFS (Common Internet File System) implementation. When a file is opened with O_TRUNC , the function cifs_do_truncate() is invoked without holding i_rwsem, preventing it from performing a proper fscache cookie resize . As a result, stale cached data c...
CVE-2026-89639 cifs: use cifs_invalidate_cache() in cifs_do_truncate() for O_TRUNC
In the Linux kernel, the following vulnerability has been resolved: cifs: use cifsinvalidatecache in cifsdotruncate for OTRUNC cifsdotruncate is invoked from cifsopen without irwsem, so it cannot use cifsresizefilelocked to perform a proper fscache cookie resize. Instead, add cifsinvalidatecache...
CVE-2026-89639: Undefined Security Weakness
In the Linux kernel, the following vulnerability has been resolved: cifs: use cifsinvalidatecache in cifsdotruncate for OTRUNC cifsdotruncate is invoked from cifsopen without irwsem, so it cannot use cifsresizefilelocked to perform a proper fscache cookie resize. Instead, add cifsinvalidatecache...
SUSE CVE-2026-80855
In the Linux kernel, the following vulnerability has been resolved: fuse: fix invalidate lock leak on open OTRUNC DAX failure fuseopen takes filemapinvalidatelock for a DAX truncate daxtruncate = true and releases it before the outinodeunlock label. But when fusedaxbreaklayouts fails, the goto...
AZL-99474 CVE-2026-80855 affecting package kernel for versions less than 6.6.157.1-1
In the Linux kernel, the following vulnerability has been resolved: fuse: fix invalidate lock leak on open OTRUNC DAX failure fuseopen takes filemapinvalidatelock for a DAX truncate daxtruncate = true and releases it before the outinodeunlock label. But when fusedaxbreaklayouts fails, the goto...
CVE-2026-80855
In the Linux kernel, the following vulnerability has been resolved: fuse: fix invalidate lock leak on open OTRUNC DAX failure fuseopen takes filemapinvalidatelock for a DAX truncate daxtruncate = true and releases it before the outinodeunlock label. But when fusedaxbreaklayouts fails, the goto...
CVE-2026-80855 fuse: fix invalidate lock leak on open O_TRUNC DAX failure
In the Linux kernel, the following vulnerability has been resolved: fuse: fix invalidate lock leak on open OTRUNC DAX failure fuseopen takes filemapinvalidatelock for a DAX truncate daxtruncate = true and releases it before the outinodeunlock label. But when fusedaxbreaklayouts fails, the goto...
kernel: NFSv4: include MAY_WRITE in open permission mask for O_TRUNC
A flaw was found in the Linux kernel's NFSv4 implementation. A local user could exploit a vulnerability where opening a file with OTRUNC truncate and ORDONLY read-only flags would bypass the necessary write permission checks. This oversight allows an attacker to truncate a file without having...