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CVE-2026-98572

bpf: Fix immediate JMP JEQ/JNE on MIPS32

In the Linux kernel, the following vulnerability has been resolved:

bpf: Fix immediate JMP JEQ/JNE on MIPS32

An addu instruction was emitted instead of addiu, causing the immediate
value 1 to be interpreted as register $at. This made the comparison
result invalid when the immediate operand was negative. Note that $at
is mapped to BPF_REG_AX, which is used for constant blinding.

Fix the instruction to use the immediate form.

Found with test_bpf on MIPS32r1 emulated by QEMU.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version eb63cfcd2ee8ec3805f6881f43341f589c3d2278
Version < 1547e9f3a7d71971216e6dba30270cae13fe4e02
Status affected
Version eb63cfcd2ee8ec3805f6881f43341f589c3d2278
Version < beeae92e70e705e90a0d6d9b3b8498ee3b92f495
Status affected
Version eb63cfcd2ee8ec3805f6881f43341f589c3d2278
Version < 6f939529ed6c580e9b6c5daa20be67fa0b3d4cf0
Status affected
Version eb63cfcd2ee8ec3805f6881f43341f589c3d2278
Version < 876ef04c75c2751acfd355606fca3eced71dec65
Status affected
Version eb63cfcd2ee8ec3805f6881f43341f589c3d2278
Version < 1bd91670966a7142ac94f2cebe2b5ae6bf5cb0c8
Status affected
Version eb63cfcd2ee8ec3805f6881f43341f589c3d2278
Version < db762fd96be225bd06161c9631160c755d891693
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 5.16
Status affected
Version 0
Version < 5.16
Status unaffected
Version <= 6.1.*
Version 6.1.189
Status unaffected
Version <= 6.6.*
Version 6.6.158
Status unaffected
Version <= 6.12.*
Version 6.12.112
Status unaffected
Version <= 6.18.*
Version 6.18.55
Status unaffected
Version <= 7.2.*
Version 7.2.9
Status unaffected
Version <= *
Version 7.3
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.21% 0.099
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/1547e9f3a7d71971216e6dba30270cae13fe4e02
https://git.kernel.org/stable/c/beeae92e70e705e90a0d6d9b3b8498ee3b92f495
https://git.kernel.org/stable/c/6f939529ed6c580e9b6c5daa20be67fa0b3d4cf0
https://git.kernel.org/stable/c/876ef04c75c2751acfd355606fca3eced71dec65
https://git.kernel.org/stable/c/1bd91670966a7142ac94f2cebe2b5ae6bf5cb0c8
https://git.kernel.org/stable/c/db762fd96be225bd06161c9631160c755d891693