Bluetooth: RFCOMM: FIX possible deadlock in rfcomm_sk_state_change
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
CVE-2024-50044
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2024-50044
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3241ad820dbb172021e0268b5611031991431626",
"lessThan": "b77b3fb12fd483cae7c28648903b1d8a6b275f01",
"versionType": "git"
},
{
"status": "affected",
"version": "3241ad820dbb172021e0268b5611031991431626",
"lessThan": "869c6ee62ab8f01bf2419e45326642be5c9b670a",
"versionType": "git"
},
{
"status": "affected",
"version": "3241ad820dbb172021e0268b5611031991431626",
"lessThan": "ef44274dae9b0a90d1a97ce8b242a3b8243a7745",
"versionType": "git"
},
{
"status": "affected",
"version": "3241ad820dbb172021e0268b5611031991431626",
"lessThan": "496b2ab0fd10f205e08909a125485fdc98843dbe",
"versionType": "git"
},
{
"status": "affected",
"version": "3241ad820dbb172021e0268b5611031991431626",
"lessThan": "ced98072d3511b232ae1d3347945f35f30c0e303",
"versionType": "git"
},
{
"status": "affected",
"version": "3241ad820dbb172021e0268b5611031991431626",
"lessThan": "38b2d5a57d125e1c17661b8308c0240c4a43b534",
"versionType": "git"
},
{
"status": "affected",
"version": "3241ad820dbb172021e0268b5611031991431626",
"lessThan": "4cb9807c9b53bf1e5560420d26f319f528b50268",
"versionType": "git"
},
{
"status": "affected",
"version": "3241ad820dbb172021e0268b5611031991431626",
"lessThan": "08d1914293dae38350b8088980e59fbc699a72fe",
"versionType": "git"
}
],
"programFiles": [
"net/bluetooth/rfcomm/sock.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.27"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.27",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "4.19.323",
"versionType": "semver",
"lessThanOrEqual": "4.19.*"
},
{
"status": "unaffected",
"version": "5.4.285",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
},
{
"status": "unaffected",
"version": "5.10.227",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.168",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.113",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.57",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.11.4",
"versionType": "semver",
"lessThanOrEqual": "6.11.*"
},
{
"status": "unaffected",
"version": "6.12",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/bluetooth/rfcomm/sock.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2024-50044
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #26778 · Revision 1
- Added to Heist Feed
- Publisher date