CVE-2026-98559
net/smc: fix UAF on lgr list traversal in smcr_port_err()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Oct 18, 2026 |
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Affected Versions
Linux / Linux
541afa10c126b6c22c2a805a559c70cc41fd156e < 34bcf11cd2528ae00bb6d764d808083c66824277 541afa10c126b6c22c2a805a559c70cc41fd156e < 0edcc4284392b28826b5d37532b366b291e6e0fa 541afa10c126b6c22c2a805a559c70cc41fd156e < 00a59600ae72d24859d0ad1783a78bc921bc2599 541afa10c126b6c22c2a805a559c70cc41fd156e < 3d35f069e1c119992000d51236dbe54da2d4e61e 541afa10c126b6c22c2a805a559c70cc41fd156e < 3d65a2eb4449fc9658fb860dea893025d028d90e 541afa10c126b6c22c2a805a559c70cc41fd156e < a9b968e42690d784c241a0761c10253271f7df5d 541afa10c126b6c22c2a805a559c70cc41fd156e < 61cb282fe97b3b0ba32ca09417a693162bf4ae3f
Linux / Linux
5.8
References
git.kernel.org: https://git.kernel.org/stable/c/34bcf11cd2528ae00bb6d764d808083c66824277 git.kernel.org: https://git.kernel.org/stable/c/0edcc4284392b28826b5d37532b366b291e6e0fa git.kernel.org: https://git.kernel.org/stable/c/00a59600ae72d24859d0ad1783a78bc921bc2599 git.kernel.org: https://git.kernel.org/stable/c/3d35f069e1c119992000d51236dbe54da2d4e61e git.kernel.org: https://git.kernel.org/stable/c/3d65a2eb4449fc9658fb860dea893025d028d90e git.kernel.org: https://git.kernel.org/stable/c/a9b968e42690d784c241a0761c10253271f7df5d git.kernel.org: https://git.kernel.org/stable/c/61cb282fe97b3b0ba32ca09417a693162bf4ae3f