EUVD-2026-81752

In the Linux kernel, the following vulnerability has been resolved: bpf: Disallow bpfg,setsockopt in cgroup UNIX getname hooks bpfsetsockopt and bpfgetsockopt call sockownedbyme for full sockets, so these helpers expect the socket lock to be held. BPFCGROUPUNIXGETPEERNAME and...

CVE-2026-90157 bpf: Reject negative optlen in cgroup getsockopt hook

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject negative optlen in cgroup getsockopt hook A cgroup getsockopt BPF program can shrink ctx-optlen after the kernel getsockopt handler has run. The kernel-buffer variant, used by TCPZEROCOPYRECEIVE, only rejects values...

EUVD-2026-81750

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject negative optlen in cgroup getsockopt hook A cgroup getsockopt BPF program can shrink ctx-optlen after the kernel getsockopt handler has run. The kernel-buffer variant, used by TCPZEROCOPYRECEIVE, only rejects values...

CVE-2026-90146

CVE-2026-90146 is a Linux kernel vulnerability in the BPF/XDP subsystem. The root cause is that bpf_xdp_link_update() calls dev_xdp_install() directly, bypassing the validation checks in dev_xdp_attach(). This allows a local user with low privileges to create an XDP link with a normal program and...

CVE-2026-90146 bpf, xdp: move offload check into dev_xdp_install()

In the Linux kernel, the following vulnerability has been resolved: bpf, xdp: move offload check into devxdpinstall bpfxdplinkupdate calls devxdpinstall directly and skips devxdpattach, so the checks in devxdpattach do not run. A user can make an XDP link with a normal program and then swap in an...

EUVD-2026-81736

In the Linux kernel, the following vulnerability has been resolved: net: kcm: Hold RCU read lock while running BPF parser kcmparsefuncstrparser calls bpfprogrunpinoncpu which prevents CPU migration, but does not establish an RCU read-side critical section. Consequently, BPF map operations can...

Security update for libpcap

This update for libpcap fixes the following issues: CVE-2026-0799: the BPF interpreter does not validate values in BPF instructions that load/store a value from/to a scratch memory register and allows for OOB access bsc1279782. CVE-2026-6244: libpcap BPF interpreter for the 'div k' and 'mod k' AL...

SUSE-SU-2026:4239-1 Security update for libpcap

This update for libpcap fixes the following issues: - CVE-2026-0799: the BPF interpreter does not validate values in BPF instructions that load/store a value from/to a scratch memory register and allows for OOB access bsc1279782. - CVE-2026-6244: libpcap BPF interpreter for the 'div k' and 'mod k...

PT-2026-94559

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the BPF subsystem on s390 architecture where a Read-Modify-Write RMW atomic operation on an arena pointer fails to clear the destination register during a fault over a...

CVE-2026-93144: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject writes through untrusted BTF pointers checkptrtobtfaccess lets program-type btfstructaccess callbacks validate writes before the default BTF access path rejects non-read accesses. That bypasses the read-only policy fo...

PT-2026-94690

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A deadlock occurs in the BPF subsystem when the arena vm fault function fails to acquire the arena-spinlock. The function returns VM FAULT RETRY, which triggers the do user addr fault pa...

PT-2026-94907

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the BPF Berkeley Packet Filter subsystem where tracing multi trampolines are not marked as ftrace managed. This occurs because the tracing multi link fails to set the...

PT-2026-94707

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the BPF trampoline mechanism where return values exceeding 8 bytes are not fully preserved. Specifically, the btf distill func proto function allows 16-byte int128...

CVE-2026-92516: Undefined Security Weakness

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-2026-92486: Undefined Security Weakness

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-2026-92520: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: bpf: Zero queue and stack outputs on lock failure Queue and stack pop/peek helpers accept an uninitialized output buffer because the verifier expects the helper to initialize it. The empty-map error path clears the buffer, but a...

CVE-2026-92517: Undefined Security Weakness

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-2026-92518: Undefined Security Weakness

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-2026-92519: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: riscv, bpf: Fix memory leak in bpfjitfree When bpfintjitcompile is called for subprograms, it returns early during the first pass !prog-isfunc || extrapass is false, keeping ctx-offset alive for the subsequent extra pass. If JIT...

CVE-2026-93044: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: bpf: Disallow interpreter fallback for arena-related insns Since the interpreter does not support the arena-related insns, interpreter fallback should not be allowed for these insns in core.c::bpfprogselectruntime. Currently, whe...