CVE-2026-93147

In the Linux kernel, the following vulnerability has been resolved: s390/bpf: Replace ly instruction with llgf cpunr is a 32 bit value and BPFREG0 is a 64 bit register, when ly loads the cpunr into BPFREG0 it does not zero the upper bits, but llgf does...

CVE-2026-93147

CVE-2026-93147 affects the Linux kernel on the s390 architecture within the BPF (Berkeley Packet Filter) subsystem. The root cause is that the ly instruction loads the 32-bit value cpu_nr into the 64-bit register BPF_REG_0 without zeroing the upper 32 bits, leaving stale data that can corrupt sub...

CVE-2026-93147 s390/bpf: Replace ly instruction with llgf

In the Linux kernel, the following vulnerability has been resolved: s390/bpf: Replace ly instruction with llgf cpunr is a 32 bit value and BPFREG0 is a 64 bit register, when ly loads the cpunr into BPFREG0 it does not zero the upper bits, but llgf does...

EUVD-2026-82255

In the Linux kernel, the following vulnerability has been resolved: s390/bpf: Replace ly instruction with llgf cpunr is a 32 bit value and BPFREG0 is a 64 bit register, when ly loads the cpunr into BPFREG0 it does not zero the upper bits, but llgf does...

CVE-2026-90211

CVE-2026-90211 affects the Linux kernel on the s390x architecture. The vulnerability resides in the BPF JIT compiler's handling of read-modify-write (RMW) atomics on arena pointers. Specifically, bpf_jit_probe_atomic_pre() leaves probe->reg at -1 (the sentinel from bpf_jit_probe_init()), so wh...

CVE-2026-53110

In the Linux kernel, the following vulnerability has been resolved: s390/bpf: Zero-extend bpf prog return values and kfunc arguments s390x ABI requires callers to zero-extend unsigned arguments and sign-extend signed arguments, and callees to zero-extend unsigned return values and sign-extend...

Azure Linux 3.0 Security Update: hyperv-daemons (CVE-2024-35917)

The version of hyperv-daemons installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2024-35917 advisory. - In the Linux kernel, the following vulnerability has been resolved: s390/bpf: Fix bpfplt pointer...

CVE-2025-38489

In the Linux kernel, the following vulnerability has been resolved: s390/bpf: Fix bpfarchtextpoke with newaddr == NULL again Commit 7ded842b356d "s390/bpf: Fix bpfplt pointer arithmetic" has accidentally removed the critical piece of commit c730fce7c70c "s390/bpf: Fix bpfarchtextpoke with newaddr...

CVE-2025-38489

CVE-2025-38489: In the Linux kernel (s390/BPF), the on-disk description notes that bpf_arch_text_poke() with new_addr == NULL caused intermittent panics; the fix re‑instates the previously removed correction from commit c730fce7c70c, restoring the intended behavior and adding a clarifying comment...

CVE-2025-38489 s390/bpf: Fix bpf_arch_text_poke() with new_addr == NULL again

In the Linux kernel, the following vulnerability has been resolved: s390/bpf: Fix bpfarchtextpoke with newaddr == NULL again Commit 7ded842b356d "s390/bpf: Fix bpfplt pointer arithmetic" has accidentally removed the critical piece of commit c730fce7c70c "s390/bpf: Fix bpfarchtextpoke with newaddr...

CVE-2024-35917

In the Linux kernel, the following vulnerability has been resolved: s390/bpf: Fix bpfplt pointer arithmetic Kui-Feng Lee reported a crash on s390x triggered by the dummystops/dummyinitptrarg test 1: 0x2 bpfstructopstestrun+0x156/0x250 sysbpf+0xa1a/0xd00 s390xsysbpf+0x44/0x50 dosyscall+0x244/0x300...

UBUNTU-CVE-2024-35917

In the Linux kernel, the following vulnerability has been resolved: s390/bpf: Fix bpfplt pointer arithmetic Kui-Feng Lee reported a crash on s390x triggered by the dummystops/dummyinitptrarg test 1: 0x2 bpfstructopstestrun+0x156/0x250 sysbpf+0xa1a/0xd00 s390xsysbpf+0x44/0x50 dosyscall+0x244/0x300...

CVE-2024-35917

CVE-2024-35917 (Linux kernel, s390/bpf) details from connected Azure Linux Nessus entry show the issue arises from GCC reordering memcpy() after assignments in bpf_jit_plt(), causing NULL pointers to be written instead of the intended return/target addresses. Root cause is GCC alias-analysis misc...

CVE-2024-35917 s390/bpf: Fix bpf_plt pointer arithmetic

In the Linux kernel, the following vulnerability has been resolved: s390/bpf: Fix bpfplt pointer arithmetic Kui-Feng Lee reported a crash on s390x triggered by the dummystops/dummyinitptrarg test 1: 0x2 bpfstructopstestrun+0x156/0x250 sysbpf+0xa1a/0xd00 s390xsysbpf+0x44/0x50 dosyscall+0x244/0x300...

CVE-2024-35917 s390/bpf: Fix bpf_plt pointer arithmetic

In the Linux kernel, the following vulnerability has been resolved: s390/bpf: Fix bpfplt pointer arithmetic Kui-Feng Lee reported a crash on s390x triggered by the dummystops/dummyinitptrarg test 1: 0x2 bpfstructopstestrun+0x156/0x250 sysbpf+0xa1a/0xd00 s390xsysbpf+0x44/0x50 dosyscall+0x244/0x300...

CVE-2024-35917 s390/bpf: Fix bpf_plt pointer arithmetic

In the Linux kernel, the following vulnerability has been resolved: s390/bpf: Fix bpfplt pointer arithmetic Kui-Feng Lee reported a crash on s390x triggered by the dummystops/dummyinitptrarg test 1: 0x2 bpfstructopstestrun+0x156/0x250 sysbpf+0xa1a/0xd00 s390xsysbpf+0x44/0x50 dosyscall+0x244/0x300...