{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2024-57891","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-01-11T14:45:42.028Z","datePublished":"2025-01-15T13:05:43.607Z","dateUpdated":"2025-05-04T10:06:00.896Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T10:06:00.896Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nsched_ext: Fix invalid irq restore in scx_ops_bypass()\n\nWhile adding outer irqsave/restore locking, 0e7ffff1b811 (\"scx: Fix raciness\nin scx_ops_bypass()\") forgot to convert an inner rq_unlock_irqrestore() to\nrq_unlock() which could re-enable IRQ prematurely leading to the following\nwarning:\n\n  raw_local_irq_restore() called with IRQs enabled\n  WARNING: CPU: 1 PID: 96 at kernel/locking/irqflag-debug.c:10 warn_bogus_irq_restore+0x30/0x40\n  ...\n  Sched_ext: create_dsq (enabling)\n  pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n  pc : warn_bogus_irq_restore+0x30/0x40\n  lr : warn_bogus_irq_restore+0x30/0x40\n  ...\n  Call trace:\n   warn_bogus_irq_restore+0x30/0x40 (P)\n   warn_bogus_irq_restore+0x30/0x40 (L)\n   scx_ops_bypass+0x224/0x3b8\n   scx_ops_enable.isra.0+0x2c8/0xaa8\n   bpf_scx_reg+0x18/0x30\n  ...\n  irq event stamp: 33739\n  hardirqs last  enabled at (33739): [<ffff8000800b699c>] scx_ops_bypass+0x174/0x3b8\n  hardirqs last disabled at (33738): [<ffff800080d48ad4>] _raw_spin_lock_irqsave+0xb4/0xd8\n\nDrop the stray _irqrestore()."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/sched/ext.c"],"versions":[{"version":"0e7ffff1b8117b05635c87d3c9099f6aa9c9b689","lessThan":"786362ce60d79967875f43e0ba55ad7a5376c133","status":"affected","versionType":"git"},{"version":"0e7ffff1b8117b05635c87d3c9099f6aa9c9b689","lessThan":"18b2093f4598d8ee67a8153badc93f0fa7686b8a","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/sched/ext.c"],"versions":[{"version":"6.12","status":"affected"},{"version":"0","lessThan":"6.12","status":"unaffected","versionType":"semver"},{"version":"6.12.9","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.13","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.12.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.13"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/786362ce60d79967875f43e0ba55ad7a5376c133"},{"url":"https://git.kernel.org/stable/c/18b2093f4598d8ee67a8153badc93f0fa7686b8a"}],"title":"sched_ext: Fix invalid irq restore in scx_ops_bypass()","x_generator":{"engine":"bippy-1.2.0"}}}}