CVE-2026-53092

Katalog CVE

CVSS 7.8 · High EPSS 0,13%

Kerentanan Return of Wrong Status Code pada linux kernel. Skor CVSS 3.1 7.8 (High) menurut CNA.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix linked reg delta tracking when src_reg == dst_reg Consider the case of rX += rX where src_reg and dst_reg are pointers to the same bpf_reg_state in adjust_reg_min_max_vals(). The latter first modifies the dst_reg in-place, and later in the delta tracking, the subsequent is_reg_const(src_reg)/reg_const_value(src_reg) reads the post-{add,sub} value instead of the original source. This is problematic since it sets an incorrect delta, which sync_linked_regs() then propagates to linked registers, thus creating a verifier-vs-runtime mismatch. Fix it by just skipping this corner case.

Rincian

Terbit di NVD

24 Juni 2026

Terakhir diubah

23 Agustus 2026

Status NVD

Modified

CVSS 3.1

7.8 (High), sumber CNA
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-393: Return of Wrong Status Code

EPSS (30 hari)

0,13% peluang dieksploitasi; lebih tinggi dari 2,3% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/cc86a8b0a1c54d2bccf6f68cf49b82dea91b84de patch
• https://git.kernel.org/stable/c/d7f14173c0d5866c3cae759dee560ad1bed10d2e patch
• https://git.kernel.org/stable/c/d88e8e4a3b52bd5b2ff3eceba4b29d1b5506d066 patch
• https://access.redhat.com/security/cve/CVE-2026-53092 advisory pihak ketiga
• https://bugzilla.redhat.com/show_bug.cgi?id=2492362 advisory pihak ketiga
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53092.json advisory pihak ketiga
• https://git.kernel.org/stable/c/1509c1ae9185ec7103899967ed788b6eebab3fcc