Bluetooth: L2CAP: handle NULL sock pointer in l2cap_sock_alloc

Summary

CVECVE-2024-58009
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-02-27 03:15:11 UTC
Updated2026-05-12 13:16:26 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: handle NULL sock pointer in l2cap_sock_alloc A NULL sock pointer is passed into l2cap_sock_alloc() when it is called from l2cap_sock_new_connection_cb() and the error handling paths should also be aware of it. Seemingly a more elegant solution would be to swap bt_sock_alloc() and l2cap_chan_create() calls since they are not interdependent to that moment but then l2cap_chan_create() adds the soon to be deallocated and still dummy-initialized channel to the global list accessible by many L2CAP paths. The channel would be removed from the list in short period of time but be a bit more straight-forward here and just check for NULL instead of changing the order of function calls. Found by Linux Verification Center (linuxtesting.org) with SVACE static analysis tool.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Problem Types: CWE-476

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected f6ad641646b67f29c7578dcd6c25813c7dcbf51e a9a7672fc1a0fe18502493936ccb06413ab89ea6 git Not specified
CNA Linux Linux affected daa13175a6dea312a76099066cb4cbd4fc959a84 8e605f580a97530e5a3583beea458a3fa4cbefbd git Not specified
CNA Linux Linux affected a8677028dd5123e5e525b8195483994d87123de4 cf601a24120c674cd7c907ea695f92617af6abd0 git Not specified
CNA Linux Linux affected bb2f2342a6ddf7c04f9aefbbfe86104cd138e629 297ce7f544aa675b0d136d788cad0710cdfb0785 git Not specified
CNA Linux Linux affected 8ad09ddc63ace3950ac43db6fbfe25b40f589dd6 245d48c1ba3e7a1779c2f4cbc6f581ddc8a78e22 git Not specified
CNA Linux Linux affected 61686abc2f3c2c67822aa23ce6f160467ec83d35 691218a50c3139f7f57ffa79fb89d932eda9571e git Not specified
CNA Linux Linux affected 7c4f78cdb8e7501e9f92d291a7d956591bf73be9 49c0d55d59662430f1829ae85b969619573d0fa1 git Not specified
CNA Linux Linux affected 7c4f78cdb8e7501e9f92d291a7d956591bf73be9 5f397409f8ee5bc82901eeaf799e1cbc4f8edcf1 git Not specified
CNA Linux Linux affected 6.13 Not specified
CNA Linux Linux unaffected 6.13 semver Not specified
CNA Linux Linux unaffected 5.4.291 5.4.* semver Not specified
CNA Linux Linux unaffected 5.10.235 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.179 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.129 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.78 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.14 6.12.* semver Not specified
CNA Linux Linux unaffected 6.13.3 6.13.* semver Not specified
CNA Linux Linux unaffected 6.14 * original_commit_for_fix Not specified
ADP Siemens SIMATIC S7-1500 TM MFP - GNU/Linux Subsystem affected * custom Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/691218a50c3139f7f57ffa79fb89d932eda9571e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/49c0d55d59662430f1829ae85b969619573d0fa1 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/5f397409f8ee5bc82901eeaf799e1cbc4f8edcf1 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
cert-portal.siemens.com/productcert/html/ssa-265688.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/297ce7f544aa675b0d136d788cad0710cdfb0785 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/a9a7672fc1a0fe18502493936ccb06413ab89ea6 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/8e605f580a97530e5a3583beea458a3fa4cbefbd 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/245d48c1ba3e7a1779c2f4cbc6f581ddc8a78e22 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
lists.debian.org/debian-lts-announce/2025/03/msg00028.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
git.kernel.org/stable/c/cf601a24120c674cd7c907ea695f92617af6abd0 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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