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CVE-2026-22977

In the Linux kernel, the following vulnerability has been resolved: net: sock: fix hardened usercopy panic in sock_recv_errqueue skbuff_fclone_cache was created without defining a usercopy region, [1] unlike skbuff_head_cache which properly whitelists the cb[] field. [2] This causes a usercopy BUG() when CONFIG_HARDENED_USERCOPY is enabled and the kernel attempts to copy sk_buff.cb data to userspace via sock_recv_errqueue() -> put_cmsg(). The crash occurs when: 1. TCP allocates an skb using a
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:fbdc73b30e7a3908880a61136ed77498d1149b527190b53187c4d9aa1f5a6f18
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 8 assertions

{"defaultStatus":"unknown","product":"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3a9a71fffa1ac26f66461e9739992c57a311f418804b76a36c261761bab4bd8b · sha256:ba07fea6508edd7c… · /containers/adp/0/affected/5

{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3a9a71fffa1ac26f66461e9739992c57a311f418804b76a36c261761bab4bd8b · sha256:ba07fea6508edd7c… · /containers/adp/0/affected/1

{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3a9a71fffa1ac26f66461e9739992c57a311f418804b76a36c261761bab4bd8b · sha256:ba07fea6508edd7c… · /containers/adp/0/affected/3

{"defaultStatus":"affected","product":"Linux","programFiles":["net/core/sock.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.16"},{"lessThan":"4.16","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.248","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.198","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.161","versionType":"semver"},{"lessThanOrEqu…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3a9a71fffa1ac26f66461e9739992c57a311f418804b76a36c261761bab4bd8b · sha256:ba07fea6508edd7c… · /containers/cna/affected/1

{"defaultStatus":"unknown","product":"RUGGEDCOM RST2428P","vendor":"Siemens","versions":[{"lessThan":"V4.0","status":"affected","version":"0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3a9a71fffa1ac26f66461e9739992c57a311f418804b76a36c261761bab4bd8b · sha256:ba07fea6508edd7c… · /containers/adp/0/affected/0

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/core/sock.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"88dd6be7ebb3153b662c2cebcb06e032a92857f5","status":"affected","version":"6d07d1cd300f4c7e16005f881fea388164999cc8","versionType":"git"},{"lessThan":"c655d2167bf014d4c61b4faeca59b60ff9b9f6b1","status":"affected","version":"6d07d1cd300f4c7e16005f881fea388164999cc8","versionType":"git"},{"lessThan":"8c6901aa29626e35045130bac09b75f791acca85","status":"affected","version":"6d07d1cd300f4c7e16005f881fea38…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3a9a71fffa1ac26f66461e9739992c57a311f418804b76a36c261761bab4bd8b · sha256:ba07fea6508edd7c… · /containers/cna/affected/0

{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3a9a71fffa1ac26f66461e9739992c57a311f418804b76a36c261761bab4bd8b · sha256:ba07fea6508edd7c… · /containers/adp/0/affected/4

{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3a9a71fffa1ac26f66461e9739992c57a311f418804b76a36c261761bab4bd8b · sha256:ba07fea6508edd7c… · /containers/adp/0/affected/2

Affected products and versions

8 source assertions
{"defaultStatus":"unknown","product":"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3a9a71fffa1ac26f66461e9739992c57a311f418804b76a36c261761bab4bd8b · sha256:ba07fea6508edd7c… · /containers/adp/0/affected/5
{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3a9a71fffa1ac26f66461e9739992c57a311f418804b76a36c261761bab4bd8b · sha256:ba07fea6508edd7c… · /containers/adp/0/affected/1
{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3a9a71fffa1ac26f66461e9739992c57a311f418804b76a36c261761bab4bd8b · sha256:ba07fea6508edd7c… · /containers/adp/0/affected/3
{"defaultStatus":"affected","product":"Linux","programFiles":["net/core/sock.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.16"},{"lessThan":"4.16","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.248","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.198","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.161","versionType":"semver"},{"lessThanOrEqu…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3a9a71fffa1ac26f66461e9739992c57a311f418804b76a36c261761bab4bd8b · sha256:ba07fea6508edd7c… · /containers/cna/affected/1
{"defaultStatus":"unknown","product":"RUGGEDCOM RST2428P","vendor":"Siemens","versions":[{"lessThan":"V4.0","status":"affected","version":"0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3a9a71fffa1ac26f66461e9739992c57a311f418804b76a36c261761bab4bd8b · sha256:ba07fea6508edd7c… · /containers/adp/0/affected/0
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/core/sock.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"88dd6be7ebb3153b662c2cebcb06e032a92857f5","status":"affected","version":"6d07d1cd300f4c7e16005f881fea388164999cc8","versionType":"git"},{"lessThan":"c655d2167bf014d4c61b4faeca59b60ff9b9f6b1","status":"affected","version":"6d07d1cd300f4c7e16005f881fea388164999cc8","versionType":"git"},{"lessThan":"8c6901aa29626e35045130bac09b75f791acca85","status":"affected","version":"6d07d1cd300f4c7e16005f881fea38…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3a9a71fffa1ac26f66461e9739992c57a311f418804b76a36c261761bab4bd8b · sha256:ba07fea6508edd7c… · /containers/cna/affected/0
{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3a9a71fffa1ac26f66461e9739992c57a311f418804b76a36c261761bab4bd8b · sha256:ba07fea6508edd7c… · /containers/adp/0/affected/4
{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3a9a71fffa1ac26f66461e9739992c57a311f418804b76a36c261761bab4bd8b · sha256:ba07fea6508edd7c… · /containers/adp/0/affected/2

Source references

9 source assertions
{"url":"https://cert-portal.siemens.com/productcert/html/ssa-019113.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3a9a71fffa1ac26f66461e9739992c57a311f418804b76a36c261761bab4bd8b · sha256:ba07fea6508edd7c… · /containers/adp/0/references/1
{"url":"https://cert-portal.siemens.com/productcert/html/ssa-253495.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3a9a71fffa1ac26f66461e9739992c57a311f418804b76a36c261761bab4bd8b · sha256:ba07fea6508edd7c… · /containers/adp/0/references/0
{"url":"https://git.kernel.org/stable/c/005671c60fcf1dbdb8bddf12a62568fd5e4ec391"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3a9a71fffa1ac26f66461e9739992c57a311f418804b76a36c261761bab4bd8b · sha256:ba07fea6508edd7c… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/2a71a1a8d0ed718b1c7a9ac61f07e5755c47ae20"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3a9a71fffa1ac26f66461e9739992c57a311f418804b76a36c261761bab4bd8b · sha256:ba07fea6508edd7c… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/582a5e922a9652fcbb7d0165c95d5b20aa37575d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3a9a71fffa1ac26f66461e9739992c57a311f418804b76a36c261761bab4bd8b · sha256:ba07fea6508edd7c… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/88dd6be7ebb3153b662c2cebcb06e032a92857f5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3a9a71fffa1ac26f66461e9739992c57a311f418804b76a36c261761bab4bd8b · sha256:ba07fea6508edd7c… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/8c6901aa29626e35045130bac09b75f791acca85"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3a9a71fffa1ac26f66461e9739992c57a311f418804b76a36c261761bab4bd8b · sha256:ba07fea6508edd7c… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/c655d2167bf014d4c61b4faeca59b60ff9b9f6b1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3a9a71fffa1ac26f66461e9739992c57a311f418804b76a36c261761bab4bd8b · sha256:ba07fea6508edd7c… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/e00b169eaac5f7cdbf710c354c8fa76d02009115"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3a9a71fffa1ac26f66461e9739992c57a311f418804b76a36c261761bab4bd8b · sha256:ba07fea6508edd7c… · /containers/cna/references/5

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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