CVE-2026-98261 cifs: Fix server use-after-free in cifs_chan_skip_or_disable()

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix server use-after-free in cifschanskipordisable When a secondary channel is no longer supported by the server, cifschanskipordisable drops the channel reference with cifsputtcpsession and then continues to use the server...

EUVD-2026-93189

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix server use-after-free in cifschanskipordisable When a secondary channel is no longer supported by the server, cifschanskipordisable drops the channel reference with cifsputtcpsession and then continues to use the server...

CVE-2026-98260

The Linux kernel is vulnerable to a use-after-free condition during the execve() system call. The issue occurs when a non-leader thread executes; while de_thread() changes the PID ownership, a per-thread CPU timer node remains queued on the original thread's posix_cputimers. If subsequent operati...

CVE-2026-98259

The Linux kernel is vulnerable to a kernel panic when booting a VM with DAX enabled storage . The issue is caused by calling dax_to_folio() with an empty entry , which occurs in the fs/dax component. Specifically, the vulnerability persists in dax_associate_entry(), dax_disassociate_entry(), and ...

EUVD-2026-93188

In the Linux kernel, the following vulnerability has been resolved: exec: Cleanup POSIX timers right after dethread A per-thread CPU timer holds a reference to the PID of the thread it is attached to and, while it is armed, its node is queued in that thread's posixcputimers. The task is looked up...

CVE-2026-98259 fs/dax: check zero or empty entry before converting xarray entry

In the Linux kernel, the following vulnerability has been resolved: fs/dax: check zero or empty entry before converting xarray entry Calling daxtofolio with empty entry causes kernel panic below when booting a VM with DAX enabled storage. This patch checks empty entry before calling daxtofolio on...

CVE-2026-98260 exec: Cleanup POSIX timers right after de_thread()

In the Linux kernel, the following vulnerability has been resolved: exec: Cleanup POSIX timers right after dethread A per-thread CPU timer holds a reference to the PID of the thread it is attached to and, while it is armed, its node is queued in that thread's posixcputimers. The task is looked up...

EUVD-2026-93187

In the Linux kernel, the following vulnerability has been resolved: fs/dax: check zero or empty entry before converting xarray entry Calling daxtofolio with empty entry causes kernel panic below when booting a VM with DAX enabled storage. This patch checks empty entry before calling daxtofolio on...

CVE-2026-98258

A race condition exists in the Linux kernel within the posix-cpu-timers component. The issue stems from a previous commit that converted cpu_timer::firing from a tristate value to a boolean, causing a loss of distinction between timers not owned by the firing list and those where delivery was can...

EUVD-2026-93186

In the Linux kernel, the following vulnerability has been resolved: posix-cpu-timers: Prevent freeing a timer which is queued on the expiry list Kijo analyzed another race in the POSIX CPU timer code: Commit bf635681c906 converted cputimer::firing from a tristate value to a boolean. This lost the...

CVE-2026-98258 posix-cpu-timers: Prevent freeing a timer which is queued on the expiry list

In the Linux kernel, the following vulnerability has been resolved: posix-cpu-timers: Prevent freeing a timer which is queued on the expiry list Kijo analyzed another race in the POSIX CPU timer code: Commit bf635681c906 converted cputimer::firing from a tristate value to a boolean. This lost the...

CVE-2026-98256

A use-after-free (UAF) vulnerability exists in the Linux kernel signal handling logic. The issue occurs during a non-leader exec() call where a SIGEV_THREAD_ID timer's struct pid points to a thread that has already called execve(). Due to a non-atomic list_del_init() operation, a signal queue ent...

CVE-2026-98257 rds: ib: use rds_conn_drop() on protocol version mismatch

In the Linux kernel, the following vulnerability has been resolved: rds: ib: use rdsconndrop on protocol version mismatch rdsibcmconnectcomplete runs from the RDMA-CM event handler with conn-ccmlock held. When the peer negotiates a protocol version older than RDSPROTOCOLCOMPATVERSION, the handler...

CVE-2026-98257

The Linux kernel contains a vulnerability in the RDS over InfiniBand implementation. When a peer negotiates a protocol version older than RDS_PROTOCOL_COMPAT_VERSION, the rds_ib_cm_connect_complete() handler calls rds_conn_destroy() while holding the conn->c_cm_lock. This triggers a synchronou...

EUVD-2026-93185

In the Linux kernel, the following vulnerability has been resolved: rds: ib: use rdsconndrop on protocol version mismatch rdsibcmconnectcomplete runs from the RDMA-CM event handler with conn-ccmlock held. When the peer negotiates a protocol version older than RDSPROTOCOLCOMPATVERSION, the handler...

EUVD-2026-93184

In the Linux kernel, the following vulnerability has been resolved: signal: Prevent exec race Hyunwoo debugged the following KASAN UAF splat: BUG: KASAN: slab-use-after-free in sendsignallocked+0xb27/0xba0 Write of size 8 at addr ffff888007ed80c8 by task poc/79 ... Call Trace:...

CVE-2026-98256

In the Linux kernel, the following vulnerability has been resolved: signal: Prevent exec race Hyunwoo debugged the following KASAN UAF splat: BUG: KASAN: slab-use-after-free in sendsignallocked+0xb27/0xba0 Write of size 8 at addr ffff888007ed80c8 by task poc/79 ... Call Trace:...

CVE-2026-98256 signal: Prevent exec() race

In the Linux kernel, the following vulnerability has been resolved: signal: Prevent exec race Hyunwoo debugged the following KASAN UAF splat: BUG: KASAN: slab-use-after-free in sendsignallocked+0xb27/0xba0 Write of size 8 at addr ffff888007ed80c8 by task poc/79 ... Call Trace:...

CVE-2026-98255

The Linux kernel contains a vulnerability where old Acknowledgements (ACKs) could bypass the fast path of the TCP stack. Specifically, ACKs before SND.UNA and after SND.NXT were not being properly validated, potentially allowing them to modify connection state or advance RCV.NXT prematurely. The ...

EUVD-2026-93183

In the Linux kernel, the following vulnerability has been resolved: tcp: exclude old ACKs from tcp fast path Exclude old ACKs before SND.UNA from the tcp fast path as well as ACKs after SND.NXT. Such ACKs will fall through to the slow path, where tcpack performs the appropriate validation and...