CVE-2026-90143
net: kcm: Hold RCU read lock while running BPF parser
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: net: kcm: Hold RCU read lock while running BPF parser kcm_parse_func_strparser() calls bpf_prog_run_pin_on_cpu() which prevents CPU migration, but does not establish an RCU read-side critical section. Consequently, BPF map operations can trigger WARN_ON_ONCE(!bpf_rcu_lock_held()) when called from the KCM strparser program. Hold the RCU read lock while running the program.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 17, 2026 |
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Affected Versions
Linux / Linux
9b73896a81dc68a638a011877b7344b252f92276 < 37108861cf7bd909d4a372069bcd61c8f489e232 9b73896a81dc68a638a011877b7344b252f92276 < 3c70d27e792a28bca650ddd8a9aa0fe3591ffec5 9b73896a81dc68a638a011877b7344b252f92276 < 1d26a6e007d46babc7fa76e5a157dccf86cd55c0 9b73896a81dc68a638a011877b7344b252f92276 < b0e94ea63dbdcbfec9beb819cd5f8fa584809ef2 9b73896a81dc68a638a011877b7344b252f92276 < 21526f8a191a3c50622b8c10bd927870d780eae4 9b73896a81dc68a638a011877b7344b252f92276 < 292846223eaddba890e40699d2ab82ee5671798c 9b73896a81dc68a638a011877b7344b252f92276 < f392affef3c9ce64dfdde794df0579e0a7793440 9b73896a81dc68a638a011877b7344b252f92276 < b0346dd64e4905291cc9c479f2e6cf1884ced4e6
Linux / Linux
4.9
References
git.kernel.org: https://git.kernel.org/stable/c/37108861cf7bd909d4a372069bcd61c8f489e232 git.kernel.org: https://git.kernel.org/stable/c/3c70d27e792a28bca650ddd8a9aa0fe3591ffec5 git.kernel.org: https://git.kernel.org/stable/c/1d26a6e007d46babc7fa76e5a157dccf86cd55c0 git.kernel.org: https://git.kernel.org/stable/c/b0e94ea63dbdcbfec9beb819cd5f8fa584809ef2 git.kernel.org: https://git.kernel.org/stable/c/21526f8a191a3c50622b8c10bd927870d780eae4 git.kernel.org: https://git.kernel.org/stable/c/292846223eaddba890e40699d2ab82ee5671798c git.kernel.org: https://git.kernel.org/stable/c/f392affef3c9ce64dfdde794df0579e0a7793440 git.kernel.org: https://git.kernel.org/stable/c/b0346dd64e4905291cc9c479f2e6cf1884ced4e6