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CVE PROGRAM SOURCE RECORDUnscored

CVE-2024-50044

Bluetooth: RFCOMM: FIX possible deadlock in rfcomm_sk_state_change

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Status
Published
Published
Updated
Assigning organization
Linux

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 3241ad820dbb172021e0268b5611031991431626 to < b77b3fb12fd483cae7c28648903b1d8a6b275f01affected
  • 3241ad820dbb172021e0268b5611031991431626 to < 869c6ee62ab8f01bf2419e45326642be5c9b670aaffected
  • 3241ad820dbb172021e0268b5611031991431626 to < ef44274dae9b0a90d1a97ce8b242a3b8243a7745affected
  • 3241ad820dbb172021e0268b5611031991431626 to < 496b2ab0fd10f205e08909a125485fdc98843dbeaffected
  • 3241ad820dbb172021e0268b5611031991431626 to < ced98072d3511b232ae1d3347945f35f30c0e303affected
  • 3241ad820dbb172021e0268b5611031991431626 to < 38b2d5a57d125e1c17661b8308c0240c4a43b534affected
  • 3241ad820dbb172021e0268b5611031991431626 to < 4cb9807c9b53bf1e5560420d26f319f528b50268affected
  • 3241ad820dbb172021e0268b5611031991431626 to < 08d1914293dae38350b8088980e59fbc699a72feaffected

Linux Linux

Default version status: affected

  • 2.6.27affected
  • 0 to < 2.6.27unaffected
  • 4.19.323 to ≤ 4.19.*unaffected
  • 5.4.285 to ≤ 5.4.*unaffected
  • 5.10.227 to ≤ 5.10.*unaffected
  • 5.15.168 to ≤ 5.15.*unaffected
  • 6.1.113 to ≤ 6.1.*unaffected
  • 6.6.57 to ≤ 6.6.*unaffected
  • 6.11.4 to ≤ 6.11.*unaffected
  • 6.12 to ≤ *unaffected

References