CVE-2024-27049: wifi: mt76: mt7925e: fix use-after-free in free_irq()
Vulnerability summary
CVE-2024-27049 is a high (CVSS 7.8) Use After Free vulnerability in linux. EPSS estimates a 0.28% chance of exploitation in the next 30 days, higher than 20.1% of scored vulnerabilities.
Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 11 · Related 10Timeline
- 01-05-2024PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7925e: fix use-after-free in free_irq() From commit a304e1b82808 ("[PATCH] Debug shared irqs"), there is a test to make sure the shared irq handler should be able to handle the unexpected event after deregistration. For this case, let's apply MT76_REMOVED flag to indicate the device was removed and do not run into the resource access anymore.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.28%
Chance of exploitation in the next 30 days
Percentile
20%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.28% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu73 products
- linux< 6.8.0-35.35
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 6.8.0-1009.9
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ c948b5da6bbec742b433138e3e3f9537a85af2e5, < 84470b48af03a818039d587478b415cbcb264ff5 | ≥ c948b5da6bbec742b433138e3e3f9537a85af2e5, < 6d9930096e1f13cf6d9aabfbf95d0e05fb04144f | ≥ c948b5da6bbec742b433138e3e3f9537a85af2e5, < a5a5f4413d91f395cb2d89829d376d7393ad48b9 | 6.7
- linux_kernel≥ 6.7, < 6.7.11 | ≥ 6.8, < 6.8.2
Debian1 product
- linux< 6.7.12-1
3 vendors · 76 products
