Riskcovery

CVE-2024-56604

Bluetooth: RFCOMM: avoid leaving dangling sk pointer in rfcomm_sock_alloc()

State
Published
Severity
7.8 High
Published
Dec 27, 2024
Updated
Aug 5, 2026
Reserved
Dec 27, 2024

Read the record on cve.org

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().

Scores

CVSSScoreVectorSource
3.17.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux
3.17.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HCISA-ADP

Weaknesses

Affected Products

ProductVersions
LinuxLinux
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before ac3eaac4cf142a15fe67be747a682b1416efeb6eAffected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 6021ccc2471b7b95e29b7cfc7938e042bf56e281Affected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 32df687e129ef0f9afcbcc914f7c32deb28fd481Affected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 3945c799f12b8d1f49a3b48369ca494d981ac465Affected
LinuxLinux
  • 2.6.12Affected
  • before 2.6.12Not affected
  • 6.1.120 through 6.1.*Not affected
  • 6.6.66 through 6.6.*Not affected
  • 6.12.5 through 6.12.*Not affected
  • 6.13 and laterNot affected

References

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