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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2026-90143

net: kcm: Hold RCU read lock while running BPF parser

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Status
Published
Published
Updated
Assigning organization
Linux

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 9b73896a81dc68a638a011877b7344b252f92276 to < 37108861cf7bd909d4a372069bcd61c8f489e232affected
  • 9b73896a81dc68a638a011877b7344b252f92276 to < 3c70d27e792a28bca650ddd8a9aa0fe3591ffec5affected
  • 9b73896a81dc68a638a011877b7344b252f92276 to < 1d26a6e007d46babc7fa76e5a157dccf86cd55c0affected
  • 9b73896a81dc68a638a011877b7344b252f92276 to < b0e94ea63dbdcbfec9beb819cd5f8fa584809ef2affected
  • 9b73896a81dc68a638a011877b7344b252f92276 to < 21526f8a191a3c50622b8c10bd927870d780eae4affected
  • 9b73896a81dc68a638a011877b7344b252f92276 to < 292846223eaddba890e40699d2ab82ee5671798caffected
  • 9b73896a81dc68a638a011877b7344b252f92276 to < f392affef3c9ce64dfdde794df0579e0a7793440affected
  • 9b73896a81dc68a638a011877b7344b252f92276 to < b0346dd64e4905291cc9c479f2e6cf1884ced4e6affected

Linux Linux

Default version status: affected

  • 4.9affected
  • 0 to < 4.9unaffected
  • 5.10.270 to ≤ 5.10.*unaffected
  • 5.15.221 to ≤ 5.15.*unaffected
  • 6.1.188 to ≤ 6.1.*unaffected
  • 6.6.157 to ≤ 6.6.*unaffected
  • 6.12.110 to ≤ 6.12.*unaffected
  • 6.18.52 to ≤ 6.18.*unaffected
  • 7.2.6 to ≤ 7.2.*unaffected
  • 7.3 to ≤ *unaffected

References