Skip to content
Heist/ feed
Unrated

nvmet-fc: fix invalid free in LS IOD error path

Type: advisorySource: Official CVE List1 source record

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.

Announced Group revision 1
Original source ↗

CVE-2026-80790

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-80790

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "c53432030d86429dc9fe5adc3d68cb9d1343b0b2",
        "lessThan": "b189c6e408896ccc23d2e76d7738847cdebf1532",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "c53432030d86429dc9fe5adc3d68cb9d1343b0b2",
        "lessThan": "449e9c4f8db84ad9d9bb288029b230bcf590faa2",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "c53432030d86429dc9fe5adc3d68cb9d1343b0b2",
        "lessThan": "1a8f007faefe8c226ec65896589f8d59b0a8d5a5",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "c53432030d86429dc9fe5adc3d68cb9d1343b0b2",
        "lessThan": "d094582cce9c08516d714e7436a8f3b9211dda90",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "c53432030d86429dc9fe5adc3d68cb9d1343b0b2",
        "lessThan": "371fb1bf902adaa59be32bd7e904a5317e604fd0",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "c53432030d86429dc9fe5adc3d68cb9d1343b0b2",
        "lessThan": "8bce9cd08aae4283badf8ddc11fbb6f57b75a81e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "c53432030d86429dc9fe5adc3d68cb9d1343b0b2",
        "lessThan": "bb9489f0dce58da730d3479588d6710d7a2c1b45",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "c53432030d86429dc9fe5adc3d68cb9d1343b0b2",
        "lessThan": "94334ea92f4d7535f66f86e33681efa94827eddc",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "c53432030d86429dc9fe5adc3d68cb9d1343b0b2",
        "lessThan": "ba98d6796d12258e837ece065d2ecb59d76ce4ff",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/nvme/target/fc.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.10"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.10",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.267",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.218",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.185",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.154",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.106",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.47",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.1.11",
        "versionType": "semver",
        "lessThanOrEqual": "7.1.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.1",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/nvme/target/fc.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-80790

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#34806 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement

Revision history

  1. CVE-2026-80790 · Revision 1Source updated