CVE-2026-80790

CVE CVE-2026-80790EUVD EUVD-2026-71433Published 2026-09-04T15:13:02.000Z

What the advisory describes

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.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux 4.10; patch: 6.6.154; c53432030d86429dc9fe5adc3d68cb9d1343b0b2 <d094582cce9c08516d714e7436a8f3b9211dda90; c53432030d86429dc9fe5adc3d68cb9d1343b0b2 <8bce9cd08aae4283badf8ddc11fbb6f57b75a81e; patch: 5.10.267; patch: 7.3-rc1; patch: 6.1.185; c53432030d86429dc9fe5adc3d68cb9d1343b0b2 <bb9489f0dce58da730d3479588d6710d7a2c1b45; patch: 7.2.1; patch: 0; c53432030d86429dc9fe5adc3d68cb9d1343b0b2 <371fb1bf902adaa59be32bd7e904a5317e604fd0; patch: 5.15.218; c53432030d86429dc9fe5adc3d68cb9d1343b0b2 <b189c6e408896ccc23d2e76d7738847cdebf1532; c53432030d86429dc9fe5adc3d68cb9d1343b0b2 <1a8f007faefe8c226ec65896589f8d59b0a8d5a5; c53432030d86429dc9fe5adc3d68cb9d1343b0b2 <ba98d6796d12258e837ece065d2ecb59d76ce4ff; patch: 6.12.106; patch: 6.18.47; patch: 7.1.11; c53432030d86429dc9fe5adc3d68cb9d1343b0b2 <449e9c4f8db84ad9d9bb288029b230bcf590faa2; c53432030d86429dc9fe5adc3d68cb9d1343b0b2 <94334ea92f4d7535f66f86e33681efa94827eddc

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

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Linux — Linux

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