CVEvulnerability

CVE-2024-50044

3.3 LOW Published 2024-10-21 Modified 2026-10-15 Official page ↗
Status
Modified
Published
2024-10-21
Last modified
2026-10-15
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 ([email protected])
3.3 LOW — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Weaknesses
CWE-667

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: RFCOMM: FIX possible deadlock in rfcomm_sk_state_change rfcomm_sk_state_change attempts to use sock_lock so it must never be called with it locked but rfcomm_sock_ioctl always attempt to lock it causing the following trace: ====================================================== WARNING: possible circular locking dependency detected 6.8.0-syzkaller-08951-gfe46a7dd189e #0 Not tainted ------------------------------------------------------ syz-executor386/5093 is trying to acquire lock: ffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1671 [inline] ffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sk_state_change+0x5b/0x310 net/bluetooth/rfcomm/sock.c:73 but task is already holding lock: ffff88807badfd28 (&d->lock){+.+.}-{3:3}, at: __rfcomm_dlc_close+0x226/0x6a0 net/bluetooth/rfcomm/core.c:491

Affected configurations

• linux linux kernel (>= 2.6.27 < 5.10.227) • linux linux kernel (>= 5.11 < 5.15.168) • linux linux kernel (>= 5.16 < 6.1.113) • linux linux kernel (>= 6.2 < 6.6.57) • linux linux kernel (>= 6.7 < 6.11.4) • linux linux kernel 6.12

Related

Weakness · CWE (1)

  • CWE-667 Improper Locking weakness

References