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CVE-2026-43050

In the Linux kernel, the following vulnerability has been resolved: atm: lec: fix use-after-free in sock_def_readable() A race condition exists between lec_atm_close() setting priv->lecd to NULL and concurrent access to priv->lecd in send_to_lecd(), lec_handle_bridge(), and lec_atm_send(). When the socket is freed via RCU while another thread is still using it, a use-after-free occurs in sock_def_readable() when accessing the socket's wait queue. The root cause is that lec_atm_close() clears
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:032ee079762c97734c8faada03e34b5b3a9790f8b52275c392aa64c76c4c3e80
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":"affected","product":"Linux","programFiles":["net/atm/lec.c","net/atm/lec.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.12"},{"lessThan":"2.6.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.253","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.168","versionType":"semver…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:67a930a8601a8790aca64358eee2fd5b8a89a10d9665831bf4a8bc8cf6f55a83 · sha256:58379ab0fb7f00ec… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/atm/lec.c","net/atm/lec.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"3e8b25f32f2f35549d03d77da030a24a45bdef5b","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"750a33f417f3d196b86375f8d9f8938bacf130fe","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"317843d5355062020649124eb4a0d7acbcc3f53e","status":"affected","version":"1da177e4c3f41524…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:67a930a8601a8790aca64358eee2fd5b8a89a10d9665831bf4a8bc8cf6f55a83 · sha256:58379ab0fb7f00ec… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["net/atm/lec.c","net/atm/lec.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.12"},{"lessThan":"2.6.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.253","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.168","versionType":"semver…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:67a930a8601a8790aca64358eee2fd5b8a89a10d9665831bf4a8bc8cf6f55a83 · sha256:58379ab0fb7f00ec… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/atm/lec.c","net/atm/lec.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"3e8b25f32f2f35549d03d77da030a24a45bdef5b","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"750a33f417f3d196b86375f8d9f8938bacf130fe","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"317843d5355062020649124eb4a0d7acbcc3f53e","status":"affected","version":"1da177e4c3f41524…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:67a930a8601a8790aca64358eee2fd5b8a89a10d9665831bf4a8bc8cf6f55a83 · sha256:58379ab0fb7f00ec… · /containers/cna/affected/0

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/317843d5355062020649124eb4a0d7acbcc3f53e"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:67a930a8601a8790aca64358eee2fd5b8a89a10d9665831bf4a8bc8cf6f55a83 · sha256:58379ab0fb7f00ec… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/3989740fa4978e1d2d51ecc62be1b01093e104ad"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:67a930a8601a8790aca64358eee2fd5b8a89a10d9665831bf4a8bc8cf6f55a83 · sha256:58379ab0fb7f00ec… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/3e8b25f32f2f35549d03d77da030a24a45bdef5b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:67a930a8601a8790aca64358eee2fd5b8a89a10d9665831bf4a8bc8cf6f55a83 · sha256:58379ab0fb7f00ec… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/5fbbb1ff936d7ff9528d929c1549977e8123d8a8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:67a930a8601a8790aca64358eee2fd5b8a89a10d9665831bf4a8bc8cf6f55a83 · sha256:58379ab0fb7f00ec… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/750a33f417f3d196b86375f8d9f8938bacf130fe"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:67a930a8601a8790aca64358eee2fd5b8a89a10d9665831bf4a8bc8cf6f55a83 · sha256:58379ab0fb7f00ec… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/922814879542c2e397b0e9641fd36b8202a8e555"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:67a930a8601a8790aca64358eee2fd5b8a89a10d9665831bf4a8bc8cf6f55a83 · sha256:58379ab0fb7f00ec… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/abc10f85a3965ac14b9ed7ad3e67b35604a63aa3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:67a930a8601a8790aca64358eee2fd5b8a89a10d9665831bf4a8bc8cf6f55a83 · sha256:58379ab0fb7f00ec… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/b256d055da47258e63f8b40965f276c5f23d229a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:67a930a8601a8790aca64358eee2fd5b8a89a10d9665831bf4a8bc8cf6f55a83 · sha256:58379ab0fb7f00ec… · /containers/cna/references/3

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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