CVE-2026-98559

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.

EPSS

0.2% chance of exploitation in the next 30 days; higher than 11% of CVEs (scores of 2026-10-25)

Published

2026-10-18

Modified

2026-10-19

Record from

the NVD, synced 2026-10-19

References

• https://git.kernel.org/stable/c/00a59600ae72d24859d0ad1783a78bc921bc2599
• https://git.kernel.org/stable/c/0edcc4284392b28826b5d37532b366b291e6e0fa
• https://git.kernel.org/stable/c/34bcf11cd2528ae00bb6d764d808083c66824277
• https://git.kernel.org/stable/c/3d35f069e1c119992000d51236dbe54da2d4e61e
• https://git.kernel.org/stable/c/3d65a2eb4449fc9658fb860dea893025d028d90e

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