CVE-2026-64395 ksmbd: require source read access for duplicate extents

In the Linux kernel, the following vulnerability has been resolved: ksmbd: require source read access for duplicate extents FSCTLDUPLICATEEXTENTSTOFILE passes the source file directly to vfsclonefilerange or vfscopyfilerange without checking the SMB access mask granted to the source handle. A...

CVE-2026-64395 ksmbd: require source read access for duplicate extents

In the Linux kernel, the following vulnerability has been resolved: ksmbd: require source read access for duplicate extents FSCTLDUPLICATEEXTENTSTOFILE passes the source file directly to vfsclonefilerange or vfscopyfilerange without checking the SMB access mask granted to the source handle. A...

CVE-2026-64395

In the Linux kernel, the following vulnerability has been resolved: ksmbd: require source read access for duplicate extents FSCTLDUPLICATEEXTENTSTOFILE passes the source file directly to vfsclonefilerange or vfscopyfilerange without checking the SMB access mask granted to the source handle. A...

EUVD-2026-48939

In the Linux kernel, the following vulnerability has been resolved: ksmbd: require source read access for duplicate extents FSCTLDUPLICATEEXTENTSTOFILE passes the source file directly to vfsclonefilerange or vfscopyfilerange without checking the SMB access mask granted to the source handle. A...

CVE-2026-64324 udf: validate free block extents against the partition length

In the Linux kernel, the following vulnerability has been resolved: udf: validate free block extents against the partition length udffreeblocks checks the logical block number and count against the partition length, but drops the extent offset from that final bound. A crafted extent can pass the...

CVE-2026-64324 udf: validate free block extents against the partition length

In the Linux kernel, the following vulnerability has been resolved: udf: validate free block extents against the partition length udffreeblocks checks the logical block number and count against the partition length, but drops the extent offset from that final bound. A crafted extent can pass the...

CVE-2026-64324

The CVE-2026-64324 issue affects the Linux kernel UDF handling. In udf_free_blocks(), the check against partition length used logicalBlockNum and count but drops the extent offset, allowing a crafted extent to pass guard checks and cause an out-of-bounds access when indexing the space bitmap, pot...

CVE-2026-64324

In the Linux kernel, the following vulnerability has been resolved: udf: validate free block extents against the partition length udffreeblocks checks the logical block number and count against the partition length, but drops the extent offset from that final bound. A crafted extent can pass the...

EUVD-2026-48868

In the Linux kernel, the following vulnerability has been resolved: udf: validate free block extents against the partition length udffreeblocks checks the logical block number and count against the partition length, but drops the extent offset from that final bound. A crafted extent can pass the...

PT-2026-64616

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description In the ksmbd module, the FSCTL DUPLICATE EXTENTS TO FILE control code passes the source file to vfs clone file range or vfs copy file range without verifying the SMB access mask of the...

Linux Distros Unpatched Vulnerability : CVE-2026-64395

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: require source read access for duplicate extents FSCTLDUPLICATEEXTENTSTOFILE passes the source file directly to vfsclonefilerange or vfscopyfilerange...

Linux Distros Unpatched Vulnerability : CVE-2026-64324

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - udf: validate free block extents against the partition length udffreeblocks checks the logical block number and count against the partition length, but drops th...

Linux Distros Unpatched Vulnerability : CVE-2026-64399

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: add permission checks for FSCTLDUPLICATEEXTENTSTOFILE The FSCTLDUPLICATEEXTENTSTOFILE arm of smb2ioctl overwrites the destination file's data via...

PT-2026-64620

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description In the Linux kernel, the smb2 ioctl function fails to perform necessary permission checks when processing the FSCTL DUPLICATE EXTENTS TO FILE control code. Specifically, it uses vfs clon...

CVE-2026-64031

A flaw was found in the Linux kernel's erofs filesystem. A race condition exists when processing unaligned compressed extents, which can cause a managed memory page folio to be incorrectly added to the page cache multiple times. This inconsistency in memory management could allow a local attacker...

SUSE CVE-2026-64031

In the Linux kernel, the following vulnerability has been resolved: erofs: fix managed cache race for unaligned extents After unaligned compressed extents were introduced, the following race could occur: Thread 1 Thread 2 zerofsfillbiovec ... filemapaddfolio 1 zerofsbindcache...

Linux Distros Unpatched Vulnerability : CVE-2026-64031

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: erofs: fix managed cache race for unaligned extents After unaligned compressed extents were...

CVE-2026-64031

In the Linux kernel, the following vulnerability has been resolved: erofs: fix managed cache race for unaligned extents After unaligned compressed extents were introduced, the following race could occur: Thread 1 Thread 2 zerofsfillbiovec ... filemapaddfolio 1 zerofsbindcache...

CVE-2026-64031 erofs: fix managed cache race for unaligned extents

In the Linux kernel, the following vulnerability has been resolved: erofs: fix managed cache race for unaligned extents After unaligned compressed extents were introduced, the following race could occur: Thread 1 Thread 2 zerofsfillbiovec ... filemapaddfolio 1 zerofsbindcache...

CVE-2026-64031

CVE-2026-64031 relates to the Linux kernel erofs module and fixes a managed cache race for unaligned extents in compressed data. The race could occur when two threads race to add the same folio to the managed cache (z_erofs_bind_cache) while folio->private is still Z_EROFS_PREALLOCATED_FOLIO. ...