CVE-2024-35989dmaengine: idxd: Fix oops during rmmod on single-CPU platforms
- 5.5MediumCVSS base score
- 0.21%Exploitation in 30 daysEPSS · top 88% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Fix oops during rmmod on single-CPU platforms During the removal of the idxd driver, registered offline callback is invoked as part of the clean up process. However, on systems with only one CPU online, no valid target is available to migrate the perf context, resulting in a kernel oops: BUG: unable to handle page fault for address: 000000000002a2b8 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 1470e1067 P4D 0 Oops: 0002 [#1] PREEMPT SMP NOPTI CPU: 0 PID: 20 Comm: cpuhp/0 Not tainted 6.8.0-rc6-dsa+ #57 Hardware name: Intel Corporation AvenueCity/AvenueCity, BIOS BHSDCRB1.86B.2492.D03.2307181620 07/18/2023 RIP: 0010:mutex_lock+0x2e/0x50 ... Call Trace: <TASK> __die+0x24/0x70 page_fault_oops+0x82/0x160 do_user_addr_fault+0x65/0x6b0 __pfx___rdmsr_safe_on_cpu+0x10/0x10 exc_page_fault+0x7d/0x170 asm_exc_page_fault+0x26/0x30 mutex_lock+0x2e/0x50 mutex_lock+0x1e/0x50 perf_pmu_migrate_context+0x87/0x1f0 perf_event_cpu_offline+0x76/0x90 [idxd] cpuhp_invoke_callback+0xa2/0x4f0 __pfx_perf_event_cpu_offline+0x10/0x10 [idxd] cpuhp_thread_fun+0x98/0x150 smpboot_thread_fn+0x27/0x260 smpboot_thread_fn+0x1af/0x260 __pfx_smpboot_thread_fn+0x10/0x10 kthread+0x103/0x140 __pfx_kthread+0x10/0x10 ret_from_fork+0x31/0x50 __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1b/0x30 <TASK> Fix the issue by preventing the migration of the perf context to an invalid target.
Timeline
ID reserved
By Linux
- 3 days later
· 3 days later
Published
- 24 months later
· 24 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.21% · top 88% of all CVEs (15 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 81dd4d4d6178306ab31db91bdc7353d485bdafce – < 9edd3aa34d50f27b97be30b2ba4a6af0945ff56b
- affected 81dd4d4d6178306ab31db91bdc7353d485bdafce – < 023b6390a15a98f9c3aa5e7da78d485d5384a08e
- affected 81dd4d4d6178306ab31db91bdc7353d485bdafce – < f976eca36cdf94e32fa4f865db0e7c427c9aa33c
- affected 81dd4d4d6178306ab31db91bdc7353d485bdafce – < 47533176fdcef17b114a6f688bc872901c1ec6bb
- affected 81dd4d4d6178306ab31db91bdc7353d485bdafce – < f221033f5c24659dc6ad7e5cf18fb1b075f4a8be
- affected 5.13
- unaffected < 5.13
- unaffected 5.15.158 – ≤ 5.15.*
- unaffected 6.1.90 – ≤ 6.1.*
- unaffected 6.6.30 – ≤ 6.6.*
- unaffected 6.8.9 – ≤ 6.8.*
- unaffected 6.9 – ≤ *
References
References5
- https://git.kernel.org/stable/c/9edd3aa34d50f27b97be30b2ba4a6af0945ff56b (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/023b6390a15a98f9c3aa5e7da78d485d5384a08e (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/f976eca36cdf94e32fa4f865db0e7c427c9aa33c (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/47533176fdcef17b114a6f688bc872901c1ec6bb (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/f221033f5c24659dc6ad7e5cf18fb1b075f4a8be (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2024-35707 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2024-35989)Record last updated .