CVE-2026-90358
CVE CVE-2026-90358EUVD EUVD-2026-82019Published 2026-09-17T16:09:03.000ZLast changed 2026-09-18T17:54:50.000ZCVSS 7.8
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: bpf, x86: Fix trampoline stack size for 128-bit arguments btf_distill_func_proto() accepts a function argument up to 16 bytes, so a 128-bit scalar such as __int128 reaches the x86 trampoline with arg_size == 16. But the current implementation assumes an __int128 argument only needs one register, so the register save area is under-allocated and save_args() overwrites adjacent stack slots. Compute the register count from arg_size for all arguments to fix it.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux a9c5ad31fbdc4dec6d266fe22e51de1ad6d1bcf2 <814cba835ef648e0c5eb79505c96c0493b29eea6; patch: 7.2.6; patch: 6.18.52; a9c5ad31fbdc4dec6d266fe22e51de1ad6d1bcf2 <4aed2346fa9b88d458eeb8c01123f3c07585a675; patch: 0; 6.1; a9c5ad31fbdc4dec6d266fe22e51de1ad6d1bcf2 <40f3bfbbb222b92278f3797614b70f68d46824ac; a9c5ad31fbdc4dec6d266fe22e51de1ad6d1bcf2 <a6d7d7a253c550e74b0651897fe313c2f9b2301f; patch: 7.3-rc1; patch: 6.12.110
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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