CVE-2024-50044

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  2. Vulnerabilities (CVE)
  3. CVE-2024-50044

3.3 /10

CVSS v3 : LOW

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

I

n 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

References
Link Resource
https://git.kernel.org/stable/c/08d1914293dae38350b8088980e59fbc699a72fe Patch
https://git.kernel.org/stable/c/38b2d5a57d125e1c17661b8308c0240c4a43b534 Patch
https://git.kernel.org/stable/c/496b2ab0fd10f205e08909a125485fdc98843dbe Patch
https://git.kernel.org/stable/c/4cb9807c9b53bf1e5560420d26f319f528b50268 Patch
https://git.kernel.org/stable/c/869c6ee62ab8f01bf2419e45326642be5c9b670a
https://git.kernel.org/stable/c/b77b3fb12fd483cae7c28648903b1d8a6b275f01
https://git.kernel.org/stable/c/ced98072d3511b232ae1d3347945f35f30c0e303 Patch
https://git.kernel.org/stable/c/ef44274dae9b0a90d1a97ce8b242a3b8243a7745 Patch
https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*
History

03 Nov 2025, 23:16

Type Values Removed Values Added
References
  • () https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html -

03 Nov 2025, 21:16

Type Values Removed Values Added
References
  • () https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html -

08 Nov 2024, 16:15

Type Values Removed Values Added
References
  • () https://git.kernel.org/stable/c/869c6ee62ab8f01bf2419e45326642be5c9b670a -
  • () https://git.kernel.org/stable/c/b77b3fb12fd483cae7c28648903b1d8a6b275f01 -

24 Oct 2024, 19:36

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 3.3
References () https://git.kernel.org/stable/c/08d1914293dae38350b8088980e59fbc699a72fe - () https://git.kernel.org/stable/c/08d1914293dae38350b8088980e59fbc699a72fe - Patch
References () https://git.kernel.org/stable/c/38b2d5a57d125e1c17661b8308c0240c4a43b534 - () https://git.kernel.org/stable/c/38b2d5a57d125e1c17661b8308c0240c4a43b534 - Patch
References () https://git.kernel.org/stable/c/496b2ab0fd10f205e08909a125485fdc98843dbe - () https://git.kernel.org/stable/c/496b2ab0fd10f205e08909a125485fdc98843dbe - Patch
References () https://git.kernel.org/stable/c/4cb9807c9b53bf1e5560420d26f319f528b50268 - () https://git.kernel.org/stable/c/4cb9807c9b53bf1e5560420d26f319f528b50268 - Patch
References () https://git.kernel.org/stable/c/ced98072d3511b232ae1d3347945f35f30c0e303 - () https://git.kernel.org/stable/c/ced98072d3511b232ae1d3347945f35f30c0e303 - Patch
References () https://git.kernel.org/stable/c/ef44274dae9b0a90d1a97ce8b242a3b8243a7745 - () https://git.kernel.org/stable/c/ef44274dae9b0a90d1a97ce8b242a3b8243a7745 - Patch
CPE cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
First Time Linux
Linux linux Kernel
CWE CWE-667

23 Oct 2024, 15:12

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: Bluetooth: RFCOMM: CORREGIR posible bloqueo en rfcomm_sk_state_change rfcomm_sk_state_change intenta usar sock_lock, por lo que nunca se debe llamar con él bloqueado, pero rfcomm_sock_ioctl siempre intenta bloquearlo, lo que provoca el siguiente rastro: ======================================================= ADVERTENCIA: se ha detectado una posible dependencia de bloqueo circular 6.8.0-syzkaller-08951-gfe46a7dd189e #0 No contaminado ------------------------------------------------------ syz-executor386/5093 está intentando adquirir el bloqueo: ffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, en: lock_sock include/net/sock.h:1671 [en línea] ffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, en: rfcomm_sk_state_change+0x5b/0x310 net/bluetooth/rfcomm/sock.c:73 pero la tarea ya tiene el bloqueo: ffff88807badfd28 (&d->lock){+.+.}-{3:3}, en: __rfcomm_dlc_close+0x226/0x6a0 net/bluetooth/rfcomm/core.c:491

21 Oct 2024, 20:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-10-21 20:15

Updated : 2025-11-03 23:16

NVD link : CVE-2024-50044

Mitre link : CVE-2024-50044

CVE.ORG link : CVE-2024-50044

JSON object : View

Products Affected

linux

CWE
CWE-667

Improper Locking