CVE-2024-42274Revert "ALSA: firewire-lib: operate for period elapse event in process context"
- 5.5MediumCVSS base score
- 0.17%Exploitation in 30 daysEPSS · top 94% 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: Revert "ALSA: firewire-lib: operate for period elapse event in process context" Commit 7ba5ca32fe6e ("ALSA: firewire-lib: operate for period elapse event in process context") removed the process context workqueue from amdtp_domain_stream_pcm_pointer() and update_pcm_pointers() to remove its overhead. With RME Fireface 800, this lead to a regression since Kernels 5.14.0, causing an AB/BA deadlock competition for the substream lock with eventual system freeze under ALSA operation: thread 0: * (lock A) acquire substream lock by snd_pcm_stream_lock_irq() in snd_pcm_status64() * (lock B) wait for tasklet to finish by calling tasklet_unlock_spin_wait() in tasklet_disable_in_atomic() in ohci_flush_iso_completions() of ohci.c thread 1: * (lock B) enter tasklet * (lock A) attempt to acquire substream lock, waiting for it to be released: snd_pcm_stream_lock_irqsave() in snd_pcm_period_elapsed() in update_pcm_pointers() in process_ctx_payloads() in process_rx_packets() of amdtp-stream.c ? tasklet_unlock_spin_wait </NMI> <TASK> ohci_flush_iso_completions firewire_ohci amdtp_domain_stream_pcm_pointer snd_firewire_lib snd_pcm_update_hw_ptr0 snd_pcm snd_pcm_status64 snd_pcm ? native_queued_spin_lock_slowpath </NMI> <IRQ> _raw_spin_lock_irqsave snd_pcm_period_elapsed snd_pcm process_rx_packets snd_firewire_lib irq_target_callback snd_firewire_lib handle_it_packet firewire_ohci context_tasklet firewire_ohci Restore the process context work queue to prevent deadlock AB/BA deadlock competition for ALSA substream lock of snd_pcm_stream_lock_irq() in snd_pcm_status64() and snd_pcm_stream_lock_irqsave() in snd_pcm_period_elapsed(). revert commit 7ba5ca32fe6e ("ALSA: firewire-lib: operate for period elapse event in process context") Replace inline description to prevent future deadlock.
Timeline
ID reserved
By Linux
- 18 days later
· 18 days later
Published
- 21 months later
· 21 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 |
|---|---|---|---|
| NVDNVD · Modified | 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)
- 0.17% · top 94% of all CVEs (13 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 7ba5ca32fe6e8d2e153fb5602997336517b34743 – < 7c07220cf634002f93a87ca2252a32766850f2d1
- affected 7ba5ca32fe6e8d2e153fb5602997336517b34743 – < b239a37d68e8bc59f9516444da222841e3b13ba9
- affected 7ba5ca32fe6e8d2e153fb5602997336517b34743 – < f5043e69aeb2786f32e84132817a007a6430aa7d
- affected 7ba5ca32fe6e8d2e153fb5602997336517b34743 – < 36c255db5a25edd42d1aca48e38b8e95ee5fd9ef
- affected 7ba5ca32fe6e8d2e153fb5602997336517b34743 – < 3dab73ab925a51ab05543b491bf17463a48ca323
- affected 5.14
- unaffected < 5.14
- unaffected 5.15.165 – ≤ 5.15.*
- unaffected 6.1.104 – ≤ 6.1.*
- unaffected 6.6.45 – ≤ 6.6.*
- unaffected 6.10.4 – ≤ 6.10.*
- unaffected 6.11 – ≤ *
References
References6
- https://git.kernel.org/stable/c/7c07220cf634002f93a87ca2252a32766850f2d1 (opens in a new tab)
- https://git.kernel.org/stable/c/b239a37d68e8bc59f9516444da222841e3b13ba9 (opens in a new tab)
- https://git.kernel.org/stable/c/f5043e69aeb2786f32e84132817a007a6430aa7d (opens in a new tab)
- https://git.kernel.org/stable/c/36c255db5a25edd42d1aca48e38b8e95ee5fd9ef (opens in a new tab)
- https://git.kernel.org/stable/c/3dab73ab925a51ab05543b491bf17463a48ca323 (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html (opens in a new tab)
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-2024-39497 (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-2024-42274)Record last updated .