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CVE-2026-52985

In the Linux kernel, the following vulnerability has been resolved: netdevsim: zero initialize struct iphdr in dummy sk_buff Syzbot reports a KMSAN uninit-value originating from nsim_dev_trap_skb_build, with the allocation also being performed in the same function. Fix this by calling skb_put_zero instead of skb_put to guarantee zero initialization of the whole IP header.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:6eed92e0f3961e0548a963424dd59a89a5bc170fe762a316fac50118c41fb247
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":["drivers/net/netdevsim/dev.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.4"},{"lessThan":"5.4","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.258","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"les…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bc93e1b8f143144c5dbe6da070d59050a0a1ddc47bf358c0d48777645b16ca3b · sha256:bd142cdae55c8b4b… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/netdevsim/dev.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"175556c049eaec14efde8c6475e763b7579b9de7","status":"affected","version":"da58f90f11f597520f226caff1d3cfc115abedc9","versionType":"git"},{"lessThan":"6e2cfd0904976e701d7a76b86b694e72af230ab0","status":"affected","version":"da58f90f11f597520f226caff1d3cfc115abedc9","versionType":"git"},{"lessThan":"1b7b6ae0e93b8d512e208b1378d74af052e4f4e7","status":"affected","version":"da58f90f11f597520f…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bc93e1b8f143144c5dbe6da070d59050a0a1ddc47bf358c0d48777645b16ca3b · sha256:bd142cdae55c8b4b… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/netdevsim/dev.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.4"},{"lessThan":"5.4","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.258","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"les…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bc93e1b8f143144c5dbe6da070d59050a0a1ddc47bf358c0d48777645b16ca3b · sha256:bd142cdae55c8b4b… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/netdevsim/dev.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"175556c049eaec14efde8c6475e763b7579b9de7","status":"affected","version":"da58f90f11f597520f226caff1d3cfc115abedc9","versionType":"git"},{"lessThan":"6e2cfd0904976e701d7a76b86b694e72af230ab0","status":"affected","version":"da58f90f11f597520f226caff1d3cfc115abedc9","versionType":"git"},{"lessThan":"1b7b6ae0e93b8d512e208b1378d74af052e4f4e7","status":"affected","version":"da58f90f11f597520f…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bc93e1b8f143144c5dbe6da070d59050a0a1ddc47bf358c0d48777645b16ca3b · sha256:bd142cdae55c8b4b… · /containers/cna/affected/0

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/175556c049eaec14efde8c6475e763b7579b9de7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bc93e1b8f143144c5dbe6da070d59050a0a1ddc47bf358c0d48777645b16ca3b · sha256:bd142cdae55c8b4b… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/1b7b6ae0e93b8d512e208b1378d74af052e4f4e7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bc93e1b8f143144c5dbe6da070d59050a0a1ddc47bf358c0d48777645b16ca3b · sha256:bd142cdae55c8b4b… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/35eaa6d8d6c2ee65e96f507add856e0eacf24591"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bc93e1b8f143144c5dbe6da070d59050a0a1ddc47bf358c0d48777645b16ca3b · sha256:bd142cdae55c8b4b… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/6e2cfd0904976e701d7a76b86b694e72af230ab0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bc93e1b8f143144c5dbe6da070d59050a0a1ddc47bf358c0d48777645b16ca3b · sha256:bd142cdae55c8b4b… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/750d0091bebf44975421268d37484ef87060d263"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bc93e1b8f143144c5dbe6da070d59050a0a1ddc47bf358c0d48777645b16ca3b · sha256:bd142cdae55c8b4b… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/818f7673ed7f4a29d4b9cee8184c47d6e57162b4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bc93e1b8f143144c5dbe6da070d59050a0a1ddc47bf358c0d48777645b16ca3b · sha256:bd142cdae55c8b4b… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/978ca6ff789f1f19c03288ac20cc1f4774e88490"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bc93e1b8f143144c5dbe6da070d59050a0a1ddc47bf358c0d48777645b16ca3b · sha256:bd142cdae55c8b4b… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/bc6002865e8c4fcf9e94975f7cf023448d8764e2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bc93e1b8f143144c5dbe6da070d59050a0a1ddc47bf358c0d48777645b16ca3b · sha256:bd142cdae55c8b4b… · /containers/cna/references/6

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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