CVE-2026-80790nvmet-fc: fix invalid free in LS IOD error path
- —Not scoredno CVSS score yet
- 0.19%Exploitation in 30 daysEPSS · top 91% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: nvmet-fc: fix invalid free in LS IOD error path nvmet_fc_alloc_ls_iodlist() advances iod while initializing the LS IOD array. If an rqstbuf allocation or response buffer DMA mapping fails, the unwind loop decrements iod past the start of the array. The final kfree(iod) therefore frees an address before the allocated object. This can be reproduced with nvme-fcloop and failslab by setting fail-nth to 6 before creating a target port. KASAN reports: BUG: KASAN: invalid-free in nvmet_fc_register_targetport Free of addr ffff88816cf8ff48 by task nvmet_fail_nth/9552 Free the original allocation base stored in tgtport->iod instead. With this fix applied, the same sysfs write with fail-nth=6 returns -ENOMEM without any KASAN report.
Timeline
ID reserved
By Linux
- 9 days later
· 9 days later
Published
- 45 days later
· 45 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.19% · top 91% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected c53432030d86429dc9fe5adc3d68cb9d1343b0b2 – < b189c6e408896ccc23d2e76d7738847cdebf1532
- affected c53432030d86429dc9fe5adc3d68cb9d1343b0b2 – < 449e9c4f8db84ad9d9bb288029b230bcf590faa2
- affected c53432030d86429dc9fe5adc3d68cb9d1343b0b2 – < 1a8f007faefe8c226ec65896589f8d59b0a8d5a5
- affected c53432030d86429dc9fe5adc3d68cb9d1343b0b2 – < d094582cce9c08516d714e7436a8f3b9211dda90
- affected c53432030d86429dc9fe5adc3d68cb9d1343b0b2 – < 371fb1bf902adaa59be32bd7e904a5317e604fd0
- affected c53432030d86429dc9fe5adc3d68cb9d1343b0b2 – < 8bce9cd08aae4283badf8ddc11fbb6f57b75a81e
- affected c53432030d86429dc9fe5adc3d68cb9d1343b0b2 – < bb9489f0dce58da730d3479588d6710d7a2c1b45
- affected c53432030d86429dc9fe5adc3d68cb9d1343b0b2 – < 94334ea92f4d7535f66f86e33681efa94827eddc
- affected c53432030d86429dc9fe5adc3d68cb9d1343b0b2 – < ba98d6796d12258e837ece065d2ecb59d76ce4ff
- affected 4.10
- unaffected < 4.10
- unaffected 5.10.267 – ≤ 5.10.*
- unaffected 5.15.218 – ≤ 5.15.*
- unaffected 6.1.185 – ≤ 6.1.*
- unaffected 6.6.154 – ≤ 6.6.*
- unaffected 6.12.106 – ≤ 6.12.*
- unaffected 6.18.47 – ≤ 6.18.*
- unaffected 7.1.11 – ≤ 7.1.*
- unaffected 7.2.1 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References9
- https://git.kernel.org/stable/c/b189c6e408896ccc23d2e76d7738847cdebf1532 (opens in a new tab)
- https://git.kernel.org/stable/c/449e9c4f8db84ad9d9bb288029b230bcf590faa2 (opens in a new tab)
- https://git.kernel.org/stable/c/1a8f007faefe8c226ec65896589f8d59b0a8d5a5 (opens in a new tab)
- https://git.kernel.org/stable/c/d094582cce9c08516d714e7436a8f3b9211dda90 (opens in a new tab)
- https://git.kernel.org/stable/c/371fb1bf902adaa59be32bd7e904a5317e604fd0 (opens in a new tab)
- https://git.kernel.org/stable/c/8bce9cd08aae4283badf8ddc11fbb6f57b75a81e (opens in a new tab)
- https://git.kernel.org/stable/c/bb9489f0dce58da730d3479588d6710d7a2c1b45 (opens in a new tab)
- https://git.kernel.org/stable/c/94334ea92f4d7535f66f86e33681efa94827eddc (opens in a new tab)
- https://git.kernel.org/stable/c/ba98d6796d12258e837ece065d2ecb59d76ce4ff (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-71433 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-80790)Record last updated .