CVE-2026-92518 riscv, bpf: Fix kernel stack corruption in tailcall with CFI

In the Linux kernel, the following vulnerability has been resolved: riscv, bpf: Fix kernel stack corruption in tailcall with CFI When CONFIGCFICLANG is enabled, prog-bpffunc already skips the kcfi instruction during setup. Including it again in the tailcall jump offset causes it to jump over an...

CVE-2026-92517 bpf, riscv: Fix extable handling for arena load_acquire

In the Linux kernel, the following vulnerability has been resolved: bpf, riscv: Fix extable handling for arena loadacquire emitatomicldst returns 1 to have buildbody skip the zext after a sub-word loadacquire. The caller does "ret = ret ?: addexceptionhandler...", which skips addexceptionhandler ...

CVE-2026-92517

CVE-2026-92517 affects the Linux kernel on RISC-V , specifically in the BPF arena load_acquire path. The root cause is in emit_atomic_ld_st(), which returns a non-zero value (1) to signal that build_body() should skip a zero-extension step. Because the caller uses ret = ret ?: add_exception_handl...

EUVD-2026-82138

In the Linux kernel, the following vulnerability has been resolved: bpf, riscv: Fix extable handling for arena loadacquire emitatomicldst returns 1 to have buildbody skip the zext after a sub-word loadacquire. The caller does "ret = ret ?: addexceptionhandler...", which skips addexceptionhandler ...

EUVD-2026-82137

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix offset warn check for bpfresspinlock Sashiko pointed out correctly that the case statement for BPFRESSPINLOCK incorrectly checks offset for BPFSPINLOCK. Fix it by checking resspinlockoff instead...

CVE-2026-92515

CVE-2026-92515 affects the Linux kernel BPF subsystem, specifically the BTF (BPF Type Format) field-traversal logic. The root cause is that btf_find_struct_field() re-initializes its seen mask on every recursive descent, so unique special fields at different nesting levels of the same aggregate a...

CVE-2026-92516 bpf: Fix offset warn check for bpf_res_spin_lock

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix offset warn check for bpfresspinlock Sashiko pointed out correctly that the case statement for BPFRESSPINLOCK incorrectly checks offset for BPFSPINLOCK. Fix it by checking resspinlockoff instead...

CVE-2026-92515 bpf: Preserve unique-field state across nested structs

In the Linux kernel, the following vulnerability has been resolved: bpf: Preserve unique-field state across nested structs btffindstructfield initializes a fresh seen mask for every recursive descent. Unique special fields in different levels of the same aggregate therefore do not see one another...

EUVD-2026-82136

In the Linux kernel, the following vulnerability has been resolved: bpf: Preserve unique-field state across nested structs btffindstructfield initializes a fresh seen mask for every recursive descent. Unique special fields in different levels of the same aggregate therefore do not see one another...

CVE-2026-92516

CVE-2026-92516 affects the Linux kernel's BPF subsystem . The bug is in the verifier's offset warning check: the case statement for BPF_RES_SPIN_LOCK incorrectly referenced the offset for BPF_SPIN_LOCK instead of res_spin_lock_off . The fix corrects this by checking the proper offset variable. Th...

CVE-2026-92516 bpf: Fix offset warn check for bpf_res_spin_lock

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix offset warn check for bpfresspinlock Sashiko pointed out correctly that the case statement for BPFRESSPINLOCK incorrectly checks offset for BPFSPINLOCK. Fix it by checking resspinlockoff instead...

CVE-2026-92515 bpf: Preserve unique-field state across nested structs

In the Linux kernel, the following vulnerability has been resolved: bpf: Preserve unique-field state across nested structs btffindstructfield initializes a fresh seen mask for every recursive descent. Unique special fields in different levels of the same aggregate therefore do not see one another...

EUVD-2026-82107

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix CFI mismatch in task work callback BPF subprograms use the bpfcallbackt ABI, but task work invokes the callback through a three-argument function pointer. This trips kCFI. Store and invoke the callback as bpfcallbackt...

CVE-2026-92486 bpf: Fix CFI mismatch in task work callback

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix CFI mismatch in task work callback BPF subprograms use the bpfcallbackt ABI, but task work invokes the callback through a three-argument function pointer. This trips kCFI. Store and invoke the callback as bpfcallbackt...

CVE-2026-90392 bpf: Fix potential UAF when reading bpf link info

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix potential UAF when reading bpf link info In bpflinkshowfdinfo and bpflinkgetinfobyfd, link-prog is accessed without holding any locks. If the prog is concurrently replaced via bpflinkupdate, the old prog can be freed,...

EUVD-2026-82053

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix potential UAF when reading bpf link info In bpflinkshowfdinfo and bpflinkgetinfobyfd, link-prog is accessed without holding any locks. If the prog is concurrently replaced via bpflinkupdate, the old prog can be freed,...

CVE-2026-90392

CVE-2026-90392 is a Use-After-Free (UAF) vulnerability in the Linux kernel's BPF subsystem. In bpf_link_show_fdinfo and bpf_link_get_info_by_fd, the link->prog pointer is accessed without holding any locks. If the program is concurrently replaced via bpf_link_update, the old program can be fre...

CVE-2026-90392 bpf: Fix potential UAF when reading bpf link info

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix potential UAF when reading bpf link info In bpflinkshowfdinfo and bpflinkgetinfobyfd, link-prog is accessed without holding any locks. If the prog is concurrently replaced via bpflinkupdate, the old prog can be freed,...

CVE-2026-90359 bpf: Reject >8 byte return values on return-reading trampoline paths

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject 8 byte return values on return-reading trampoline paths btfdistillfuncproto builds the function model used for the fentry/fexit/fmodret/fsession trampolines and structops. It has accepted a 16-byte int128 return value...

EUVD-2026-82020

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject 8 byte return values on return-reading trampoline paths btfdistillfuncproto builds the function model used for the fentry/fexit/fmodret/fsession trampolines and structops. It has accepted a 16-byte int128 return value...