CVE-2024-50148: Bluetooth: bnep: fix wild-memory-access in proto_unregister
First published: Thu Nov 07 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: bnep: fix wild-memory-access in proto_unregister There's issue as follows: KASAN: maybe wild-memory-access in range [0xdead...108-0xdead...10f] CPU: 3 UID: 0 PID: 2805 Comm: rmmod Tainted: G W RIP: 0010:proto_unregister+0xee/0x400 Call Trace: <TASK> __do_sys_delete_module+0x318/0x580 do_syscall_64+0xc1/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f As bnep_init() ignore bnep_sock_init()'s return value, and bnep_sock_init() will cleanup all resource. Then when remove bnep module will call bnep_sock_cleanup() to cleanup sock's resource. To solve above issue just return bnep_sock_init()'s return value in bnep_exit().
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | >=2.6.12<4.19.323 | |
| Linux Linux kernel | >=4.20<5.4.285 | |
| Linux Linux kernel | >=5.5<5.10.229 | |
| Linux Linux kernel | >=5.11<5.15.170 | |
| Linux Linux kernel | >=5.16<6.1.115 | |
| Linux Linux kernel | >=6.2<6.6.59 | |
| Linux Linux kernel | >=6.7<6.11.6 | |
| Linux Linux kernel | =6.12-rc1 | |
| Linux Linux kernel | =6.12-rc2 | |
| Linux Linux kernel | =6.12-rc3 |
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Reference Links
- https://git.kernel.org/stable/c/03015b6329e6de42f03ec917c25c4cf944f81f66
- https://git.kernel.org/stable/c/20c424bc475b2b2a6e0e2225d2aae095c2ab2f41
- https://git.kernel.org/stable/c/2c439470b23d78095a0d2f923342df58b155f669
- https://git.kernel.org/stable/c/64a90991ba8d4e32e3173ddd83d0b24167a5668c
- https://git.kernel.org/stable/c/6c151aeb6dc414db8f4daf51be072e802fae6667
- https://git.kernel.org/stable/c/d10cd7bf574ead01fae140ce117a11bcdacbe6a8
- https://git.kernel.org/stable/c/e232728242c4e98fb30e4c6bedb6ba8b482b6301
- https://git.kernel.org/stable/c/fa58e23ea1359bd24b323916d191e2e9b4b19783
- https://lore.kernel.org/linux-cve-announce/2024110744-CVE-2024-50148-b75c@gregkh/T
- https://access.redhat.com/errata/RHSA-2024:11486
- https://bugzilla.redhat.com/show_bug.cgi?id=2324332
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