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CVE-2026-23134

In the Linux kernel, the following vulnerability has been resolved: slab: fix kmalloc_nolock() context check for PREEMPT_RT On PREEMPT_RT kernels, local_lock becomes a sleeping lock. The current check in kmalloc_nolock() only verifies we're not in NMI or hard IRQ context, but misses the case where preemption is disabled. When a BPF program runs from a tracepoint with preemption disabled (preempt_count > 0), kmalloc_nolock() proceeds to call local_lock_irqsave() which attempts to acquire a sle
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:6ef00b3f567838447d50eeb6dcdd674c580daf308da47c290785a3c814374ab2
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":["mm/slub.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.8","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.19","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:30bf81ea8f0ffb79fb20a33add11cb530b7a8605b3ab0565fc3ad29d89a81765 · sha256:3d7dfe5e16e0715e… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["mm/slub.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"f60ba4a97ae3f94e4818722ed2e4d260bbb17b44","status":"affected","version":"af92793e52c3a99b828ed4bdd277fd3e11c18d08","versionType":"git"},{"lessThan":"99a3e3a1cfc93b8fe318c0a3a5cfb01f1d4ad53c","status":"affected","version":"af92793e52c3a99b828ed4bdd277fd3e11c18d08","versionType":"git"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:30bf81ea8f0ffb79fb20a33add11cb530b7a8605b3ab0565fc3ad29d89a81765 · sha256:3d7dfe5e16e0715e… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["mm/slub.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.8","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.19","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:30bf81ea8f0ffb79fb20a33add11cb530b7a8605b3ab0565fc3ad29d89a81765 · sha256:3d7dfe5e16e0715e… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["mm/slub.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"f60ba4a97ae3f94e4818722ed2e4d260bbb17b44","status":"affected","version":"af92793e52c3a99b828ed4bdd277fd3e11c18d08","versionType":"git"},{"lessThan":"99a3e3a1cfc93b8fe318c0a3a5cfb01f1d4ad53c","status":"affected","version":"af92793e52c3a99b828ed4bdd277fd3e11c18d08","versionType":"git"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:30bf81ea8f0ffb79fb20a33add11cb530b7a8605b3ab0565fc3ad29d89a81765 · sha256:3d7dfe5e16e0715e… · /containers/cna/affected/0

Source references

2 source assertions
{"url":"https://git.kernel.org/stable/c/99a3e3a1cfc93b8fe318c0a3a5cfb01f1d4ad53c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:30bf81ea8f0ffb79fb20a33add11cb530b7a8605b3ab0565fc3ad29d89a81765 · sha256:3d7dfe5e16e0715e… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/f60ba4a97ae3f94e4818722ed2e4d260bbb17b44"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:30bf81ea8f0ffb79fb20a33add11cb530b7a8605b3ab0565fc3ad29d89a81765 · sha256:3d7dfe5e16e0715e… · /containers/cna/references/0

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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