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

The Linux kernel contains a vulnerability in the bnxt_en driver where a burst of packets can cause the queue to stop permanently. This occurs because the driver may defer completions for all packets in a small ring (

CVE-2026-97566

The Linux kernel contains a vulnerability in the in-kernel MPTCP path manager where removing the id 0 endpoint fails to tear down pending announcements. This asymmetry between the id 0 path and non-zero id paths leaves a stale ADD_ADDR announcement entry alive. When the path manager later reselec...

CVE-2026-97567

The Linux kernel contains a vulnerability where a race condition can occur between the disconnect() and rtx events within the mptcp component. This race condition can lead to an inconsistent status . The issue is resolved by implementing a synchronous timer stop operation to prevent the concurren...

CVE-2026-97565

The Linux kernel contains a vulnerability in the CIFSSMBRead() function where it fails to verify that a complete READ_RSP has been received from a server. Specifically, the code dereferences DataLengthHigh , DataLength , and DataOffset without ensuring the response length is at least read_rsp_siz...

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-2026-97563

The Linux kernel contains a vulnerability in the SMB1 synchronous read helper CIFSSMBRead() . The function fails to validate the DataOffset field, allowing a malicious or compromised SMB1 server to provide a large DataOffset with an in-range DataLength . This can cause memcpy() to read past the e...

CVE-2026-97562

The Linux kernel contains a vulnerability in the smb client where a race condition exists during DFS automount expiry . Specifically, tcon_super_cb() stores a raw superblock pointer, but __cifs_get_super() fails to take the active reference until after iterate_supers_type() has dropped the s_umou...

CVE-2026-97561

The Linux kernel contains a vulnerability where the SMB client fails to honor forceuid and forcegid mount options. Specifically, the functions smb311_posix_info_to_fattr(), cifs_posix_to_fattr(), and parse_sec_desc() unconditionally called sid_to_id(), allowing server-provided values to overwrite...

CVE-2026-97560

The Linux kernel contains a one-byte out-of-bounds (OOB) read vulnerability within the smb2_parse_native_symlink() function of the SMB client. The flaw occurs when parsing a share-root relative native symlink, where memcpy copies smb_target+1 (skipping the leading separator) but incorrectly uses ...

CVE-2026-97558

The Linux kernel contains a vulnerability in the SMB client where a cifsFileInfo reference leak occurs during a deferred close operation. The issue stems from a race condition in cifs_close(): if deferred_close_scheduled becomes false while work is pending, subsequent cifs_open() calls may reuse ...

CVE-2026-97559

The Linux kernel contains a vulnerability in the SMB client where the functions replace_sids_and_copy_aces() and set_chmod_dacl() incorrectly use a u16 accumulator to track DACL size. This causes an integer wraparound when the rewritten DACL exceeds 64K (specifically reaching a wraparound with 86...

CVE-2026-97557

The Linux kernel contains a vulnerability in the CIFS (SMB) client where cifs_queue_oplock_break() unconditionally increments a file reference count before attempting to queue cifs_oplock_break(). If the work item is already queued, queue_work() returns false, causing the reference count to leak....

CVE-2026-97556

The Linux kernel contains a vulnerability in the SMB client where a reference count leak occurs when cifs_sb_tlink() fails, specifically in setups using the "-o multiuser" option. The cifs_oplock_break() function fails to release the file reference in this specific failure path, which can lead to...

CVE-2026-97555

A heap overflow vulnerability exists in the Linux kernel 's SMB client within the DACL owner/group rewrite process. When id_mode_to_cifs_acl rewrites an existing DACL, it incorrectly allocates a buffer based on the on-disk length. If the replacement SIDs obtained from the cifs.idmap upcall are lo...

CVE-2026-97553

The Linux kernel contains a vulnerability in the xfs filesystem component. Specifically, the function xfs_healthmon_unmount performs an unlocked insert of the unmount event into the health monitor's event list . The fix involves properly locking the healthmon during this insertion to ensure threa...

CVE-2026-97554

A vulnerability exists in the Linux kernel SMB client within the cifs_posix_to_fattr() function. The issue stems from the function ignoring the return value of posix_info_parse() . When processing a malformed POSIX directory entry from an untrusted server (such as one with invalid SID lengths), t...

CVE-2026-97551

The Linux kernel 's xfs filesystem contains a vulnerability where xfs_parent_da_args_init() initializes xfs_parent_args with a zeroed value, leaving args->total at 0. During attribute fork growth, xfs_da_grow_inode_int() treats this as a running block reservation; because it is an xfs_extlen_t...

CVE-2026-97552

The Linux kernel contains a vulnerability in the xfs filesystem where xfs_defer_finish_one() declares an error variable without an initialiser. If the dfp->dfp_work list is empty, the loop body is skipped, and the function returns an indeterminate value . This occurs when xfs_reap_ag_blocks() ...

CVE-2026-97550

The Linux kernel contains a logic error in the xfs filesystem regarding per_binval computation. The vulnerability stems from performing unit conversions in the wrong direction: the second parameter of xfs_buf_inval_log_space is expected in bytes , while max_binval is measured in fsblocks . This r...