CVE-2024-56604Bluetooth: RFCOMM: avoid leaving dangling sk pointer in rfcomm_sock_alloc()
- 7.8HighCVSS base score
- 0.22%Exploitation in 30 daysEPSS · top 87% 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: Bluetooth: RFCOMM: avoid leaving dangling sk pointer in rfcomm_sock_alloc() bt_sock_alloc() attaches allocated sk object to the provided sock object. If rfcomm_dlc_alloc() fails, we release the sk object, but leave the dangling pointer in the sock object, which may cause use-after-free. Fix this by swapping calls to bt_sock_alloc() and rfcomm_dlc_alloc().
Timeline
ID reserved
By Linux
Published
- 20 months later
· 20 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 |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CISA-ADPADP (enrichment) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.22% · top 87% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < ac3eaac4cf142a15fe67be747a682b1416efeb6e
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 6021ccc2471b7b95e29b7cfc7938e042bf56e281
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 32df687e129ef0f9afcbcc914f7c32deb28fd481
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 3945c799f12b8d1f49a3b48369ca494d981ac465
- affected 2.6.12
- unaffected < 2.6.12
- unaffected 6.1.120 – ≤ 6.1.*
- unaffected 6.6.66 – ≤ 6.6.*
- unaffected 6.12.5 – ≤ 6.12.*
- unaffected 6.13 – ≤ *
References
References5
- https://git.kernel.org/stable/c/ac3eaac4cf142a15fe67be747a682b1416efeb6e (opens in a new tab)
- https://git.kernel.org/stable/c/6021ccc2471b7b95e29b7cfc7938e042bf56e281 (opens in a new tab)
- https://git.kernel.org/stable/c/32df687e129ef0f9afcbcc914f7c32deb28fd481 (opens in a new tab)
- https://git.kernel.org/stable/c/3945c799f12b8d1f49a3b48369ca494d981ac465 (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2025/03/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-2024-53252 (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-2024-56604)Record last updated .