CVE-2026-72426
CVE CVE-2026-72426EUVD EUVD-2026-59325Published 2026-08-15T05:56:43.000ZLast changed 2026-08-17T05:44:06.000ZCVSS 8.4
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: bpf: Preserve pointer spill metadata during half-slot cleanup __clean_func_state() cleans dead stack slots in 4-byte halves. When the high half of a STACK_SPILL slot is dead and the low half remains live, cleanup converts the live low half to STACK_MISC or STACK_ZERO and clears the saved spilled_ptr metadata. That conversion is safe only for scalar spills. For a pointer spill, this metadata clear lets a later 32-bit fill from the still-live half avoid the normal non-scalar register-fill check and be treated as an ordinary scalar stack read. Leave non-scalar spill slots intact in this half-live shape. This is conservative for pruning and preserves the existing check_stack_read_fixed_off() rejection path for partial fills from pointer spills.
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 7.1; patch: 7.2; patch: 0; patch: 7.1.5; be23266b4a08540aa43d8503a2ea10247c8daebe <0f9278b22cda6fd2525049930157b79b4036b4ef; be23266b4a08540aa43d8503a2ea10247c8daebe <3a354149bceacadbcf7d7b4766f5ef26a85892ab
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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