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CVE-2026-23255

In the Linux kernel, the following vulnerability has been resolved: net: add proper RCU protection to /proc/net/ptype Yin Fengwei reported an RCU stall in ptype_seq_show() and provided a patch. Real issue is that ptype_seq_next() and ptype_seq_show() violate RCU rules. ptype_seq_show() runs under rcu_read_lock(), and reads pt->dev to get device name without any barrier. At the same time, concurrent writers can remove a packet_type structure (which is correctly freed after an RCU grace perio
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:5c832a3a0011df704827c26527badb3cdae45a3415d1ebdb4661f5f7474ddd3f
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/core/net-procfs.c"],"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":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.136","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.80","versionType":"semver"},{"lessTh…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:64a5d0b08db2946e1eb65b3b0a1c578bd45a5af77b3c5b6c0dd7f18a04c8cb85 · sha256:3525a5dcf55a22f3… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/core/net-procfs.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"e974a10a52618f7f57a4bce173a0ed96acd4e5dc","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"002a73470b56848e4c81efeaaedd471e92d66d8d","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"dcefd3f0b9ed8288654c75254bdcee8e1085e861","status":"affected","version":"1da177e4c3f41524e886b7f1…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:64a5d0b08db2946e1eb65b3b0a1c578bd45a5af77b3c5b6c0dd7f18a04c8cb85 · sha256:3525a5dcf55a22f3… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["net/core/net-procfs.c"],"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":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.136","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.80","versionType":"semver"},{"lessTh…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:64a5d0b08db2946e1eb65b3b0a1c578bd45a5af77b3c5b6c0dd7f18a04c8cb85 · sha256:3525a5dcf55a22f3… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/core/net-procfs.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"e974a10a52618f7f57a4bce173a0ed96acd4e5dc","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"002a73470b56848e4c81efeaaedd471e92d66d8d","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"dcefd3f0b9ed8288654c75254bdcee8e1085e861","status":"affected","version":"1da177e4c3f41524e886b7f1…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:64a5d0b08db2946e1eb65b3b0a1c578bd45a5af77b3c5b6c0dd7f18a04c8cb85 · sha256:3525a5dcf55a22f3… · /containers/cna/affected/0

Source references

5 source assertions
{"url":"https://git.kernel.org/stable/c/002a73470b56848e4c81efeaaedd471e92d66d8d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:64a5d0b08db2946e1eb65b3b0a1c578bd45a5af77b3c5b6c0dd7f18a04c8cb85 · sha256:3525a5dcf55a22f3… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/589a530ae44d0c80f523fcfd1a15af8087f27d35"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:64a5d0b08db2946e1eb65b3b0a1c578bd45a5af77b3c5b6c0dd7f18a04c8cb85 · sha256:3525a5dcf55a22f3… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/dcefd3f0b9ed8288654c75254bdcee8e1085e861"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:64a5d0b08db2946e1eb65b3b0a1c578bd45a5af77b3c5b6c0dd7f18a04c8cb85 · sha256:3525a5dcf55a22f3… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/e974a10a52618f7f57a4bce173a0ed96acd4e5dc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:64a5d0b08db2946e1eb65b3b0a1c578bd45a5af77b3c5b6c0dd7f18a04c8cb85 · sha256:3525a5dcf55a22f3… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/f613e8b4afea0cd17c7168e8b00e25bc8d33175d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:64a5d0b08db2946e1eb65b3b0a1c578bd45a5af77b3c5b6c0dd7f18a04c8cb85 · sha256:3525a5dcf55a22f3… · /containers/cna/references/4

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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