Baitaphish
Security intelligence
SearchLatest briefing
CVE Explorer

CVE-2026-23450

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix NULL dereference and UAF in smc_tcp_syn_recv_sock() Syzkaller reported a panic in smc_tcp_syn_recv_sock() [1]. smc_tcp_syn_recv_sock() is called in the TCP receive path (softirq) via icsk_af_ops->syn_recv_sock on the clcsock (TCP listening socket). It reads sk_user_data to get the smc_sock pointer. However, when the SMC listen socket is being closed concurrently, smc_close_active() sets clcsock->sk_user_data to N
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:ab4dcc789137f682ef4c71f5dc079890b4d8737955d9bf256b234e29038b42be
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 12 assertions

{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:54ff1910a7184a8253b92e9961dbc56738541c245fc97d18fadab33dec0b0971 · sha256:c260b49b440805ae… · /containers/adp/0/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/smc/af_smc.c","net/smc/smc.h","net/smc/smc_close.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"f315277856caeafcd996c2611afc085ca2d53275","status":"affected","version":"ebfee3e153f67c8b38eb94a7062ee94aa6f92708","versionType":"git"},{"lessThan":"1e4f873879e075bbd4eb1c644d6933303ac5eba4","status":"affected","version":"8270d9c21041470f58348248b9d9dcf3bf79592e","versionType":"git"},{"lessThan":"f00fc26c8a06442b225a350fe000c0a11483e6a3","status":"affected","v…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:54ff1910a7184a8253b92e9961dbc56738541c245fc97d18fadab33dec0b0971 · sha256:c260b49b440805ae… · /containers/cna/affected/0

{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:54ff1910a7184a8253b92e9961dbc56738541c245fc97d18fadab33dec0b0971 · sha256:c260b49b440805ae… · /containers/adp/0/affected/5

{"defaultStatus":"unknown","product":"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:54ff1910a7184a8253b92e9961dbc56738541c245fc97d18fadab33dec0b0971 · sha256:c260b49b440805ae… · /containers/adp/0/affected/9

{"defaultStatus":"affected","product":"Linux","programFiles":["net/smc/af_smc.c","net/smc/smc.h","net/smc/smc_close.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.18"},{"lessThan":"5.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.167","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.130","v…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:54ff1910a7184a8253b92e9961dbc56738541c245fc97d18fadab33dec0b0971 · sha256:c260b49b440805ae… · /containers/cna/affected/1

{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:54ff1910a7184a8253b92e9961dbc56738541c245fc97d18fadab33dec0b0971 · sha256:c260b49b440805ae… · /containers/adp/0/affected/3

{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:54ff1910a7184a8253b92e9961dbc56738541c245fc97d18fadab33dec0b0971 · sha256:c260b49b440805ae… · /containers/adp/0/affected/7

{"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:v2:54ff1910a7184a8253b92e9961dbc56738541c245fc97d18fadab33dec0b0971 · sha256:c260b49b440805ae… · /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:v2:54ff1910a7184a8253b92e9961dbc56738541c245fc97d18fadab33dec0b0971 · sha256:c260b49b440805ae… · /containers/adp/0/affected/0

{"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:v2:54ff1910a7184a8253b92e9961dbc56738541c245fc97d18fadab33dec0b0971 · sha256:c260b49b440805ae… · /containers/adp/0/affected/2

{"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:v2:54ff1910a7184a8253b92e9961dbc56738541c245fc97d18fadab33dec0b0971 · sha256:c260b49b440805ae… · /containers/adp/0/affected/8

{"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:v2:54ff1910a7184a8253b92e9961dbc56738541c245fc97d18fadab33dec0b0971 · sha256:c260b49b440805ae… · /containers/adp/0/affected/6

Affected products and versions

12 source assertions
{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:54ff1910a7184a8253b92e9961dbc56738541c245fc97d18fadab33dec0b0971 · sha256:c260b49b440805ae… · /containers/adp/0/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/smc/af_smc.c","net/smc/smc.h","net/smc/smc_close.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"f315277856caeafcd996c2611afc085ca2d53275","status":"affected","version":"ebfee3e153f67c8b38eb94a7062ee94aa6f92708","versionType":"git"},{"lessThan":"1e4f873879e075bbd4eb1c644d6933303ac5eba4","status":"affected","version":"8270d9c21041470f58348248b9d9dcf3bf79592e","versionType":"git"},{"lessThan":"f00fc26c8a06442b225a350fe000c0a11483e6a3","status":"affected","v…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:54ff1910a7184a8253b92e9961dbc56738541c245fc97d18fadab33dec0b0971 · sha256:c260b49b440805ae… · /containers/cna/affected/0
{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:54ff1910a7184a8253b92e9961dbc56738541c245fc97d18fadab33dec0b0971 · sha256:c260b49b440805ae… · /containers/adp/0/affected/5
{"defaultStatus":"unknown","product":"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:54ff1910a7184a8253b92e9961dbc56738541c245fc97d18fadab33dec0b0971 · sha256:c260b49b440805ae… · /containers/adp/0/affected/9
{"defaultStatus":"affected","product":"Linux","programFiles":["net/smc/af_smc.c","net/smc/smc.h","net/smc/smc_close.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.18"},{"lessThan":"5.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.167","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.130","v…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:54ff1910a7184a8253b92e9961dbc56738541c245fc97d18fadab33dec0b0971 · sha256:c260b49b440805ae… · /containers/cna/affected/1
{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:54ff1910a7184a8253b92e9961dbc56738541c245fc97d18fadab33dec0b0971 · sha256:c260b49b440805ae… · /containers/adp/0/affected/3
{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:54ff1910a7184a8253b92e9961dbc56738541c245fc97d18fadab33dec0b0971 · sha256:c260b49b440805ae… · /containers/adp/0/affected/7
{"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:v2:54ff1910a7184a8253b92e9961dbc56738541c245fc97d18fadab33dec0b0971 · sha256:c260b49b440805ae… · /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:v2:54ff1910a7184a8253b92e9961dbc56738541c245fc97d18fadab33dec0b0971 · sha256:c260b49b440805ae… · /containers/adp/0/affected/0
{"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:v2:54ff1910a7184a8253b92e9961dbc56738541c245fc97d18fadab33dec0b0971 · sha256:c260b49b440805ae… · /containers/adp/0/affected/2
{"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:v2:54ff1910a7184a8253b92e9961dbc56738541c245fc97d18fadab33dec0b0971 · sha256:c260b49b440805ae… · /containers/adp/0/affected/8
{"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:v2:54ff1910a7184a8253b92e9961dbc56738541c245fc97d18fadab33dec0b0971 · sha256:c260b49b440805ae… · /containers/adp/0/affected/6

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":9.8,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/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:v2:54ff1910a7184a8253b92e9961dbc56738541c245fc97d18fadab33dec0b0971 · sha256:c260b49b440805ae… · /containers/cna/metrics/0/cvssV3_1

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:v2:54ff1910a7184a8253b92e9961dbc56738541c245fc97d18fadab33dec0b0971 · sha256:c260b49b440805ae… · /containers/adp/0/references/1
{"url":"https://cert-portal.siemens.com/productcert/html/ssa-082556.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:54ff1910a7184a8253b92e9961dbc56738541c245fc97d18fadab33dec0b0971 · sha256:c260b49b440805ae… · /containers/adp/0/references/0
{"url":"https://git.kernel.org/stable/c/1e4f873879e075bbd4eb1c644d6933303ac5eba4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:54ff1910a7184a8253b92e9961dbc56738541c245fc97d18fadab33dec0b0971 · sha256:c260b49b440805ae… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/1fab5ece76fb42a761178dcd0ebcbf578377b0dd"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:54ff1910a7184a8253b92e9961dbc56738541c245fc97d18fadab33dec0b0971 · sha256:c260b49b440805ae… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/6d5e4538364b9ceb1ac2941a4deb86650afb3538"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:54ff1910a7184a8253b92e9961dbc56738541c245fc97d18fadab33dec0b0971 · sha256:c260b49b440805ae… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/cadf3da46c15523fba90d80c9955f536ee3b4023"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:54ff1910a7184a8253b92e9961dbc56738541c245fc97d18fadab33dec0b0971 · sha256:c260b49b440805ae… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/f00fc26c8a06442b225a350fe000c0a11483e6a3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:54ff1910a7184a8253b92e9961dbc56738541c245fc97d18fadab33dec0b0971 · sha256:c260b49b440805ae… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/f315277856caeafcd996c2611afc085ca2d53275"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:54ff1910a7184a8253b92e9961dbc56738541c245fc97d18fadab33dec0b0971 · sha256:c260b49b440805ae… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/fd7579f0a2c84ba8a7d4f206201b50dc8ddf90c2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:54ff1910a7184a8253b92e9961dbc56738541c245fc97d18fadab33dec0b0971 · sha256:c260b49b440805ae… · /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.

← Back to CVE Explorer