CVE-2026-97568

The Linux kernel contains a vulnerability within the mptcp component related to syncookies. The root cause is the use of an uninitialised bit when copying information in the subflow_ulp_clone() function. To resolve this, the backup flag from struct mptcp_subflow_request_sock is now correctly hand...

CVE-2026-97569 bnxt_en: Prevent queue stop with deferred completions

In the Linux kernel, the following vulnerability has been resolved: bnxten: Prevent queue stop with deferred completions When the driver receives a burst of packets, it can mark a BD with the NOCMPL bit to defer completions. The expectation is that the last packet in the ring will have this bit...

CVE-2026-97568 mptcp: syncookies: remember the request backup flag

In the Linux kernel, the following vulnerability has been resolved: mptcp: syncookies: remember the request backup flag Instead of using an uninitialised bit when copying the info in subflowulpclone. To fix this, no need to extend the joinentry structure: backup is coming from struct...

CVE-2026-97568 mptcp: syncookies: remember the request backup flag

In the Linux kernel, the following vulnerability has been resolved: mptcp: syncookies: remember the request backup flag Instead of using an uninitialised bit when copying the info in subflowulpclone. To fix this, no need to extend the joinentry structure: backup is coming from struct...

CVE-2026-97568

In the Linux kernel, the following vulnerability has been resolved: mptcp: syncookies: remember the request backup flag Instead of using an uninitialised bit when copying the info in subflowulpclone. To fix this, no need to extend the joinentry structure: backup is coming from struct...

EUVD-2026-86876

In the Linux kernel, the following vulnerability has been resolved: mptcp: syncookies: remember the request backup flag Instead of using an uninitialised bit when copying the info in subflowulpclone. To fix this, no need to extend the joinentry structure: backup is coming from struct...

CVE-2026-97566 mptcp: pm: kernel: drop pending ADD_ADDR when removing ID0

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: kernel: drop pending ADDADDR when removing ID0 The in-kernel MPTCP path manager can leave a stale ADDADDR announcement entry alive when removing the id 0 endpoint. This happens because the id 0 removal path does not te...

CVE-2026-97567 mptcp: prevent race between disconnect() and rtx

In the Linux kernel, the following vulnerability has been resolved: mptcp: prevent race between disconnect and rtx Sashiko noted that the two event can race, leading to inconsistent status. Prevent the race using the synchronous timer stop operation...

CVE-2026-97565 smb: client: reject short READ responses in CIFSSMBRead()

In the Linux kernel, the following vulnerability has been resolved: smb: client: reject short READ responses in CIFSSMBRead CIFSSMBRead reads DataLengthHigh, DataLength and DataOffset out of the READRSP returned by the server without first checking that a whole READRSP was actually received. The...

CVE-2026-97563 smb: client: reject out-of-bounds DataOffset in CIFSSMBRead()

In the Linux kernel, the following vulnerability has been resolved: smb: client: reject out-of-bounds DataOffset in CIFSSMBRead The SMB1 synchronous read helper CIFSSMBRead validates the server's DataLength against CIFSMaxBufSize and the caller's count, but never validates DataOffset. The copy...

CVE-2026-97564

The Linux kernel contains a vulnerability in the SMB client where the cifs.idmap key type lacks a vet_description hook. This allows userspace to create keys via request_key(2) or add_key(2) containing authority-bearing fields (such as SIDs and uid/gid values) that are improperly treated as kernel...

CVE-2026-97564 smb: client: reject userspace cifs.idmap descriptions

In the Linux kernel, the following vulnerability has been resolved: smb: client: reject userspace cifs.idmap descriptions cifs.idmap key descriptions carry authority-bearing fields owner and group SIDs and uid/gid values in "os:"/"gs:"/"oi:"/"gi:" form that the cifs.idmap upcall helper treats as...

CVE-2026-97564 smb: client: reject userspace cifs.idmap descriptions

In the Linux kernel, the following vulnerability has been resolved: smb: client: reject userspace cifs.idmap descriptions cifs.idmap key descriptions carry authority-bearing fields owner and group SIDs and uid/gid values in "os:"/"gs:"/"oi:"/"gi:" form that the cifs.idmap upcall helper treats as...

EUVD-2026-86872

In the Linux kernel, the following vulnerability has been resolved: smb: client: reject userspace cifs.idmap descriptions cifs.idmap key descriptions carry authority-bearing fields owner and group SIDs and uid/gid values in "os:"/"gs:"/"oi:"/"gi:" form that the cifs.idmap upcall helper treats as...

CVE-2026-97564

In the Linux kernel, the following vulnerability has been resolved: smb: client: reject userspace cifs.idmap descriptions cifs.idmap key descriptions carry authority-bearing fields owner and group SIDs and uid/gid values in "os:"/"gs:"/"oi:"/"gi:" form that the cifs.idmap upcall helper treats as...

CVE-2026-97561 smb: client: honor forceuid/forcegid when mapping SIDs to uid/gid

In the Linux kernel, the following vulnerability has been resolved: smb: client: honor forceuid/forcegid when mapping SIDs to uid/gid When the administrator mounts with forceuid or forcegid uid=/gid= mount options, they expect all files to appear owned by the specified user/group. However, severa...

CVE-2026-97562 smb: client: pin DFS superblock in iterator callback

In the Linux kernel, the following vulnerability has been resolved: smb: client: pin DFS superblock in iterator callback tconsupercb stores a raw superblock pointer, but cifsgetsuper takes its active reference only after iteratesuperstype has dropped sumount and its passive reference. Concurrent...

CVE-2026-97560 smb: client: fix one-byte OOB read in smb2_parse_native_symlink()

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix one-byte OOB read in smb2parsenativesymlink When parsing a share-root relative native symlink, memcpy copies smbtarget+1 skipping the leading separator but uses strlensmbtarget+1 as the length, reading one byte...

CVE-2026-97559 smb: client: fail DACL rewrite when the new DACL exceeds 64K

In the Linux kernel, the following vulnerability has been resolved: smb: client: fail DACL rewrite when the new DACL exceeds 64K replacesidsandcopyaces and setchmoddacl accumulate the size of the DACL they build in a u16. That accumulator can wrap. validatedacl caps numaces at daclsize -...

CVE-2026-97558 smb: client: fix cifsFileInfo reference leak in deferred close

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix cifsFileInfo reference leak in deferred close When cifsclose defers a close, it hands the cifsFileInfo reference of the closing struct file to the queued work. Each execution of smb2deferredworkclose drops one su...