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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-98559

net/smc: fix UAF on lgr list traversal in smcr_port_err()

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix UAF on lgr list traversal in smcr_port_err() smcr_port_err() traverses smc_lgr_list.list without holding smc_lgr_list.lock, allowing a concurrent smc_lgr_terminate_sched() to free an lgr while it is still being dereferenced. Hold smc_lgr_list.lock across the traversal. Update smc_ib_gid_check() to call smcr_port_err() after releasing the lock.

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

  • 541afa10c126b6c22c2a805a559c70cc41fd156e to < 34bcf11cd2528ae00bb6d764d808083c66824277affected
  • 541afa10c126b6c22c2a805a559c70cc41fd156e to < 0edcc4284392b28826b5d37532b366b291e6e0faaffected
  • 541afa10c126b6c22c2a805a559c70cc41fd156e to < 00a59600ae72d24859d0ad1783a78bc921bc2599affected
  • 541afa10c126b6c22c2a805a559c70cc41fd156e to < 3d35f069e1c119992000d51236dbe54da2d4e61eaffected
  • 541afa10c126b6c22c2a805a559c70cc41fd156e to < 3d65a2eb4449fc9658fb860dea893025d028d90eaffected
  • 541afa10c126b6c22c2a805a559c70cc41fd156e to < a9b968e42690d784c241a0761c10253271f7df5daffected
  • 541afa10c126b6c22c2a805a559c70cc41fd156e to < 61cb282fe97b3b0ba32ca09417a693162bf4ae3faffected

Linux Linux

Default version status: affected

  • 5.8affected
  • 0 to < 5.8unaffected
  • 5.15.222 to ≤ 5.15.*unaffected
  • 6.1.189 to ≤ 6.1.*unaffected
  • 6.6.158 to ≤ 6.6.*unaffected
  • 6.12.112 to ≤ 6.12.*unaffected
  • 6.18.55 to ≤ 6.18.*unaffected
  • 7.2.9 to ≤ 7.2.*unaffected
  • 7.3 to ≤ *unaffected

References