CVE-2026-64375
CVE CVE-2026-64375EUVD EUVD-2026-48919Published 2026-07-25T08:50:26.000ZLast changed 2026-08-05T12:41:12.000ZCVSS 7.8
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: proc: protect ptrace_may_access() with exec_update_lock (FD links) proc_pid_get_link() and proc_pid_readlink() currently look up the task from the pid once, then do the ptrace access check on that task, then look up the task from the pid a second time to do the actual access. That's racy in several ways. To fix it, pass the task to the ->proc_get_link() handler, and instead of proc_fd_access_allowed(), introduce a new helper call_proc_get_link() that looks up and locks the task, does the access check, and calls ->proc_get_link().
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 patch: 7.2-rc1; patch: 6.1.178; patch: 0; 778c1144771f0064b6f51bee865cceb0d996f2f9 <65bf0d2b6e914f1448d6a2fde193dcf60936a651; patch: 5.15.212; 778c1144771f0064b6f51bee865cceb0d996f2f9 <138c692d2b2d63d26f2eb957d0e4fcc5d61f9ff2; 778c1144771f0064b6f51bee865cceb0d996f2f9 <de497d7aa2fae453a7e7c8f7d3e8682e565e3aaf; 778c1144771f0064b6f51bee865cceb0d996f2f9 <6255da28d4bb5349fe18e84cb043ccd394eba75d; patch: 7.1.4; 778c1144771f0064b6f51bee865cceb0d996f2f9 <6253dfee5afba536bb54fc6fe6c091c3758fafe1; 2.6.18; patch: 5.10.261; patch: 6.12.97; 778c1144771f0064b6f51bee865cceb0d996f2f9 <dfd1894cb64cbd8758b461ed713800fe73db4f82; 778c1144771f0064b6f51bee865cceb0d996f2f9 <83b17872e3166c295c599279fc9562ac3840c638; patch: 6.18.40; patch: 6.6.145; 778c1144771f0064b6f51bee865cceb0d996f2f9 <497c6bae5167428596575f20af6613ff5671f383
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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