Unrated severityNVD Advisory· Published Oct 18, 2026
CVE-2026-98559
CVE-2026-98559
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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1Patches
Vulnerability mechanics
References
7- git.kernel.org/stable/c/00a59600ae72d24859d0ad1783a78bc921bc2599nvd
- git.kernel.org/stable/c/0edcc4284392b28826b5d37532b366b291e6e0fanvd
- git.kernel.org/stable/c/34bcf11cd2528ae00bb6d764d808083c66824277nvd
- git.kernel.org/stable/c/3d35f069e1c119992000d51236dbe54da2d4e61envd
- git.kernel.org/stable/c/3d65a2eb4449fc9658fb860dea893025d028d90envd
- git.kernel.org/stable/c/61cb282fe97b3b0ba32ca09417a693162bf4ae3fnvd
- git.kernel.org/stable/c/a9b968e42690d784c241a0761c10253271f7df5dnvd
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