EUVD-2026-86720

In the Linux kernel, the following vulnerability has been resolved: erofs: disable LZ4 rolling decompression for now LZ4 rolling decompression 1 was introduced to reduce the memory footprint of temporary pages: For many cases, it is needed for users to read small data within a compressed extent...

EUVD-2026-86719

In the Linux kernel, the following vulnerability has been resolved: ALSA: caiaq: Fix potential double-free at error path The fix for caiaq driver's resource management to handle the errors tries to release the resources in a common destructor call, but as a sashiko review for another patch...

CVE-2026-98065

The Linux kernel contains a vulnerability where key-less BTF (Type ID 0) can be created for hash maps (htab and rhtab ). This occurs because these maps gained a ->map_check_btf callback that fails to validate the key, allowing the creation of maps that were previously rejected. When reading th...

CVE-2026-98065

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject key-less BTF for hash maps mapcheckbtf allows a key-less BTF btfkeytypeid == 0 only for maps that have a -mapcheckbtf callback, and leaves the actual decision to that callback. Hash maps used to have no -mapcheckbtf, ...

CVE-2026-98066

The Linux kernel 's caiaq audio driver contains a vulnerability where the resource management logic for handling errors can result in a double-free condition. Specifically, certain audio resources, such as URBs , may have been previously freed, yet the driver attempts to release them again during...

EUVD-2026-86718

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject key-less BTF for hash maps mapcheckbtf allows a key-less BTF btfkeytypeid == 0 only for maps that have a -mapcheckbtf callback, and leaves the actual decision to that callback. Hash maps used to have no -mapcheckbtf, ...

EUVD-2026-86716

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix NULL-ptr-deref in btfvarshow btfvarshow calls btftypeidresolve unconditionally, which dereferences btf-resolvedids. That is NULL for a base BTF - e.g. the vmlinux BTF that bpfsnprintfbtf renders against - since base BTF ...

EUVD-2026-86717

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix NULL-ptr-deref when showing a void BTF type btfmodifiershow resolves the modifier and then calls btftypeopst-show unconditionally. For the void type typeid 0, BTFKINDUNKN kindops has no entry, so -show is NULL. A "const...

CVE-2026-98063

The Linux kernel contains a NULL pointer dereference vulnerability in the btf_var_show() function. The issue occurs because btf_var_show() unconditionally calls btf_type_id_resolve() , which dereferences btf->resolved_ids . This pointer is NULL for base BTF structures, such as the vmlinux BTF ...

CVE-2026-98064

The Linux kernel contains a NULL-pointer dereference vulnerability within the BPF subsystem. The issue occurs in btf_modifier_show() when it attempts to call the show() operation on a void type (type_id 0, BTF_KIND_UNKN). Because the kind_ops[] array lacks an entry for this type, the pointer is N...

EUVD-2026-86715

In the Linux kernel, the following vulnerability has been resolved: bpf: Mark signal tracepoint siginfo arguments as scalar The signalgenerate and signaldeliver tracepoints declare their info argument as a struct kernelsiginfo pointer. btfctxaccess therefore treats it as a trusted pointer for tpb...

CVE-2026-98062

The Linux kernel contains a vulnerability where the signal_generate and signal_deliver tracepoints incorrectly declare their info argument as a struct kernel_siginfo pointer . Because btf_ctx_access() treats this as a trusted pointer, a tp_btf program can dereference non-pointer values like SEND_...

CVE-2026-98061

The Linux kernel contains a vulnerability in the BPF verifier where tail calls made directly from synchronous callback frames trigger a verifier bug. The root cause is that prepare_func_exit() marks register R0 as precise for callbacks, but the tail-call path synthesizes R0 instead of deriving it...

EUVD-2026-86714

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject tail calls directly from callback frames A tail call from a non-zero frame is modeled as a return from that frame. The verifier makes R0 unknown and calls preparefuncexit for the taken branch. When the current frame i...

CVE-2026-98060

The Linux kernel contains a vulnerability in the BPF subsystem where the resilient lock kfunc argument path fails to enforce a rule regarding rbtree callbacks . Specifically, because __bpf_rbtree_add() keeps parent and link pointers live during comparison callbacks, the root's lock must remain he...

EUVD-2026-86713

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject resilient lock operations in rbtree callbacks bpfrbtreeadd keeps parent and link pointers live across calls to the program-supplied comparison callback. The verifier therefore requires the root's lock to remain held...

CVE-2026-98058

In the Linux kernel, the following vulnerability has been resolved: bpf: Mark syscall helpers as sleepable bpfsysbpf executes the bpf2 syscall body, which can take mutexes, allocate with GFPKERNEL, and wait for an RCU grace period. bpfsysclose reaches closefd and filpclose, which can sleep as wel...

CVE-2026-98059

The Linux kernel contains a vulnerability where the sched_process_wait tracepoint argument is not correctly marked as nullable. Specifically, kernel_wait4() and kernel_waitid_prepare() can leave wo_pid as NULL . Because btf_ctx_access() types this argument as PTR_TRUSTED without PTR_MAYBE_NULL, t...

CVE-2026-98058

The Linux kernel contains a vulnerability where the bpf_sys_bpf() and bpf_sys_close() helpers lack the .might_sleep attribute. Because these helpers can take mutexes, allocate memory with GFP_KERNEL, or wait for RCU grace periods, their use in non-sleepable contexts—such as a bpf_timer callback e...

EUVD-2026-86711

In the Linux kernel, the following vulnerability has been resolved: bpf: Mark syscall helpers as sleepable bpfsysbpf executes the bpf2 syscall body, which can take mutexes, allocate with GFPKERNEL, and wait for an RCU grace period. bpfsysclose reaches closefd and filpclose, which can sleep as wel...