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CVE-2026-31644

In the Linux kernel, the following vulnerability has been resolved: net: lan966x: fix use-after-free and leak in lan966x_fdma_reload() When lan966x_fdma_reload() fails to allocate new RX buffers, the restore path restarts DMA using old descriptors whose pages were already freed via lan966x_fdma_rx_free_pages(). Since page_pool_put_full_page() can release pages back to the buddy allocator, the hardware may DMA into memory now owned by other kernel subsystems. Additionally, on the restore path,
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:17d2595407097551f51b5885be564ab6fdbca7ba8d6ae10bd8081d1baf9eed87
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"691082c0b93c13a5e068c0905f673060bddc204e","status":"affected","version":"89ba464fcf548d64bc7215dfe769f791330ae8b6","versionType":"git"},{"lessThan":"92a673019943770930e2a8bfd52e1aad47a1fc1f","status":"affected","version":"89ba464fcf548d64bc7215dfe769f791330ae8b6","versionType":"git"},{"lessThan":"9950e9199b3dfdfbde0b8d96ba947d7b11243801","status":"affected","ve…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:29f9e4945e6a1a3b1f7d384ac936a609df6f9c9af29d9eeceeddef1a30e4988b · sha256:b8d6dc6f51adb7c5… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.12"},{"lessThan":"6.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.82","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.23","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.13","v…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:29f9e4945e6a1a3b1f7d384ac936a609df6f9c9af29d9eeceeddef1a30e4988b · sha256:b8d6dc6f51adb7c5… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"691082c0b93c13a5e068c0905f673060bddc204e","status":"affected","version":"89ba464fcf548d64bc7215dfe769f791330ae8b6","versionType":"git"},{"lessThan":"92a673019943770930e2a8bfd52e1aad47a1fc1f","status":"affected","version":"89ba464fcf548d64bc7215dfe769f791330ae8b6","versionType":"git"},{"lessThan":"9950e9199b3dfdfbde0b8d96ba947d7b11243801","status":"affected","ve…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:29f9e4945e6a1a3b1f7d384ac936a609df6f9c9af29d9eeceeddef1a30e4988b · sha256:b8d6dc6f51adb7c5… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.12"},{"lessThan":"6.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.82","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.23","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.13","v…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:29f9e4945e6a1a3b1f7d384ac936a609df6f9c9af29d9eeceeddef1a30e4988b · sha256:b8d6dc6f51adb7c5… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:29f9e4945e6a1a3b1f7d384ac936a609df6f9c9af29d9eeceeddef1a30e4988b · sha256:b8d6dc6f51adb7c5… · /containers/cna/metrics/0/cvssV3_1

Source references

4 source assertions
{"url":"https://git.kernel.org/stable/c/59c3d55a946cacdb4181600723c20ac4f4c20c84"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:29f9e4945e6a1a3b1f7d384ac936a609df6f9c9af29d9eeceeddef1a30e4988b · sha256:b8d6dc6f51adb7c5… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/691082c0b93c13a5e068c0905f673060bddc204e"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:29f9e4945e6a1a3b1f7d384ac936a609df6f9c9af29d9eeceeddef1a30e4988b · sha256:b8d6dc6f51adb7c5… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/92a673019943770930e2a8bfd52e1aad47a1fc1f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:29f9e4945e6a1a3b1f7d384ac936a609df6f9c9af29d9eeceeddef1a30e4988b · sha256:b8d6dc6f51adb7c5… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/9950e9199b3dfdfbde0b8d96ba947d7b11243801"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:29f9e4945e6a1a3b1f7d384ac936a609df6f9c9af29d9eeceeddef1a30e4988b · sha256:b8d6dc6f51adb7c5… · /containers/cna/references/2

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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