CVE-2026-90139

This vulnerability affects the Linux kernel FUSE (Filesystem in Userspace) module. The root cause is a NULL pointer dereference in fuse_fill_super_submount(): when fuse_iget() fails to allocate an inode (e.g., under memory pressure), the resulting NULL is passed unchecked to get_fuse_inode(), cau...

CVE-2026-90139 fuse: check for NULL root inode in fuse_fill_super_submount

In the Linux kernel, the following vulnerability has been resolved: fuse: check for NULL root inode in fusefillsupersubmount fuseiget can return NULL when its inode allocation fails, but fusefillsupersubmount passed the result straight to getfuseinode and decremented fi-nlookup without checking i...

CVE-2026-90139 fuse: check for NULL root inode in fuse_fill_super_submount

In the Linux kernel, the following vulnerability has been resolved: fuse: check for NULL root inode in fusefillsupersubmount fuseiget can return NULL when its inode allocation fails, but fusefillsupersubmount passed the result straight to getfuseinode and decremented fi-nlookup without checking i...

CVE-2026-90115 xsk: fix NULL pointer dereference in __xsk_rcv()

In the Linux kernel, the following vulnerability has been resolved: xsk: fix NULL pointer dereference in xskrcv In the xskrcv multi-buffer path, xskbuffalloc is called in a loop without checking its return value. xskbuffcanalloc only counts fill queue entries without validating their addresses, s...

CVE-2026-90115

CVE-2026-90115 affects the Linux kernel XDP subsystem (net/xdp/xsk.c). In the __xsk_rcv() multi-buffer path, xsk_buff_alloc() is called in a loop without checking its return value. Since xsk_buff_can_alloc() only counts fill queue entries without validating their addresses, it can succeed while x...

CVE-2026-90115 xsk: fix NULL pointer dereference in __xsk_rcv()

In the Linux kernel, the following vulnerability has been resolved: xsk: fix NULL pointer dereference in xskrcv In the xskrcv multi-buffer path, xskbuffalloc is called in a loop without checking its return value. xskbuffcanalloc only counts fill queue entries without validating their addresses, s...

EUVD-2026-81708

In the Linux kernel, the following vulnerability has been resolved: xsk: fix NULL pointer dereference in xskrcv In the xskrcv multi-buffer path, xskbuffalloc is called in a loop without checking its return value. xskbuffcanalloc only counts fill queue entries without validating their addresses, s...

CVE-2026-90113 netdevsim: update queue NAPI association on queue reset

In the Linux kernel, the following vulnerability has been resolved: netdevsim: update queue NAPI association on queue reset In netdevsim, receive queues struct nsimrq embed their own struct napistruct. When queue reset is performed e.g. via queuereset debugfs, nsimqueuestart swaps in a newly...

CVE-2026-90104 NFSv4.1: zero referring call lists before decoding

In the Linux kernel, the following vulnerability has been resolved: NFSv4.1: zero referring call lists before decoding decodecbsequenceargs allocates csarclists with kmallocobjs, so each referringcalllist starts uninitialized. decoderclist assigns rclrefcalls only when rclnrefcalls is nonzero. A...

CVE-2026-90103

In the Linux kernel, the following vulnerability has been resolved: NFSv4.2: fix LAYOUTSTATS send buffer exhaustion encodelayoutstatsmaxsz budgets XDRQUADLENPNFSLAYOUTSTATSMAXSIZE, i.e. 256 bytes, for the layoutupdate4 body written by the layout driver. The flexfiles record can exceed that...

CVE-2026-90091 Bluetooth: L2CAP: fix race l2cap_sock_cleanup_listen() vs. put_chan

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: fix race l2capsockcleanuplisten vs. putchan For L2CAP sockets without owning sk-sksocket, reading l2cappisk-chan may race against concurrent l2capsockkill - l2capsockputchan. This excludes simultaneous protoops...

CVE-2026-90091

CVE-2026-90091 is a race condition in the Linux kernel's Bluetooth L2CAP subsystem. For L2CAP sockets that do not own sk->sk_socket, an unsafe lockless read of l2cap_pi(sk)->chan in l2cap_sock_cleanup_listen() can race against a concurrent l2cap_sock_kill() → l2cap_sock_put_chan(), which se...

CVE-2026-90066

CVE-2026-90066 affects the Linux kernel 's samples/ftrace module (ftrace-direct-multi-modify). The root cause is a missing IS_ERR() check on the return value of kthread_run() in ftrace_direct_multi_init(). When kthread_run() fails (e.g., returning ERR_PTR(-ENOMEM)), the module loads with simple_t...

EUVD-2026-81927

In the Linux kernel, the following vulnerability has been resolved: samples/ftrace: Fix kthreadstop on ERRPTR in ftrace-direct-multi-modify ftracedirectmultiinit assigns kthreadrun's return value to simpletsk without an ISERR check. When kthreadrun fails it returns ERRPTR-ENOMEM, but init still...

CVE-2026-90066 samples/ftrace: Fix kthread_stop() on ERR_PTR in ftrace-direct-multi-modify

In the Linux kernel, the following vulnerability has been resolved: samples/ftrace: Fix kthreadstop on ERRPTR in ftrace-direct-multi-modify ftracedirectmultiinit assigns kthreadrun's return value to simpletsk without an ISERR check. When kthreadrun fails it returns ERRPTR-ENOMEM, but init still...

CVE-2026-90066 samples/ftrace: Fix kthread_stop() on ERR_PTR in ftrace-direct-multi-modify

In the Linux kernel, the following vulnerability has been resolved: samples/ftrace: Fix kthreadstop on ERRPTR in ftrace-direct-multi-modify ftracedirectmultiinit assigns kthreadrun's return value to simpletsk without an ISERR check. When kthreadrun fails it returns ERRPTR-ENOMEM, but init still...

CVE-2026-76781

A flaw was found in libxml2. A local user or an attacker providing a specially crafted XML catalog can trigger a NULL pointer dereference during XML catalog parsing. This occurs when a "nextCatalog" element lacks its mandatory "catalog" attribute, leading to the application crashing and causing a...

CVE-2026-76781 Libxml2: libxml2: null pointer dereference parsing nextcatalog without catalog attribute

A flaw was found in libxml2. A local user or an attacker providing a specially crafted XML catalog can trigger a NULL pointer dereference during XML catalog parsing. This occurs when a nextCatalog element lacks its mandatory catalog attribute, leading to the application crashing and causing a...

CVE-2026-76781

A flaw was found in libxml2. A local user or an attacker providing a specially crafted XML catalog can trigger a NULL pointer dereference during XML catalog parsing. This occurs when a nextCatalog element lacks its mandatory catalog attribute, leading to the application crashing and causing a...

CVE-2026-76781

CVE-2026-76781 is a NULL pointer dereference in libxml2 's XML catalog parsing. When a nextCatalog element lacks its mandatory catalog attribute, the parser dereferences a NULL pointer, causing the application to crash and resulting in a Denial of Service . The attack vector is local with user in...