CVE-2024-54460
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-54460
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-54460.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2024-54460
- Downstream
- Related
- Published
- 2025-01-11T12:29:53Z
- Modified
- 2025-10-15T05:17:17.454520Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- Bluetooth: iso: Fix circular lock in iso_listen_bis
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: iso: Fix circular lock in isolistenbis
This fixes the circular locking dependency warning below, by releasing the socket lock before enterning isolistenbis, to avoid any potential deadlock with hdev lock.
[ 75.307983] ====================================================== [ 75.307984] WARNING: possible circular locking dependency detected [ 75.307985] 6.12.0-rc6+ #22 Not tainted [ 75.307987] ------------------------------------------------------ [ 75.307987] kworker/u81:2/2623 is trying to acquire lock: [ 75.307988] ffff8fde1769da58 (sklock-AFBLUETOOTH-BTPROTOISO) at: isoconnectcfm+0x253/0x840 [bluetooth] [ 75.308021] but task is already holding lock: [ 75.308022] ffff8fdd61a10078 (&hdev->lock) at: hcileperadvreportevt+0x47/0x2f0 [bluetooth] [ 75.308053] which lock already depends on the new lock.
[ 75.308054] the existing dependency chain (in reverse order) is: [ 75.308055] -> #1 (&hdev->lock){+.+.}-{3:3}: [ 75.308057] _mutexlock+0xad/0xc50 [ 75.308061] mutexlocknested+0x1b/0x30 [ 75.308063] isosocklisten+0x143/0x5c0 [bluetooth] [ 75.308085] _syslistensocket+0x49/0x60 [ 75.308088] _x64syslisten+0x4c/0x90 [ 75.308090] x64syscall+0x2517/0x25f0 [ 75.308092] dosyscall64+0x87/0x150 [ 75.308095] entrySYSCALL64afterhwframe+0x76/0x7e [ 75.308098] -> #0 (sklock-AFBLUETOOTH-BTPROTOISO){+.+.}-{0:0}: [ 75.308100] _lockacquire+0x155e/0x25f0 [ 75.308103] lockacquire+0xc9/0x300 [ 75.308105] locksocknested+0x32/0x90 [ 75.308107] isoconnectcfm+0x253/0x840 [bluetooth] [ 75.308128] hciconnectcfm+0x6c/0x190 [bluetooth] [ 75.308155] hcileperadvreportevt+0x27b/0x2f0 [bluetooth] [ 75.308180] hcilemetaevt+0xe7/0x200 [bluetooth] [ 75.308206] hcieventpacket+0x21f/0x5c0 [bluetooth] [ 75.308230] hcirxwork+0x3ae/0xb10 [bluetooth] [ 75.308254] processonework+0x212/0x740 [ 75.308256] workerthread+0x1bd/0x3a0 [ 75.308258] kthread+0xe4/0x120 [ 75.308259] retfromfork+0x44/0x70 [ 75.308261] retfromforkasm+0x1a/0x30 [ 75.308263] other info that might help us debug this:
[ 75.308264] Possible unsafe locking scenario:
[ 75.308264] CPU0 CPU1 [ 75.308265] ---- ---- [ 75.308265] lock(&hdev->lock); [ 75.308267] lock(sklock- AFBLUETOOTH-BTPROTOISO); [ 75.308268] lock(&hdev->lock); [ 75.308269] lock(sklock-AFBLUETOOTH-BTPROTOISO); [ 75.308270] * DEADLOCK *
[ 75.308271] 4 locks held by kworker/u81:2/2623: [ 75.308272] #0: ffff8fdd66e52148 ((wqcompletion)hci0#2){+.+.}-{0:0}, at: processonework+0x443/0x740 [ 75.308276] #1: ffffafb488b7fe48 ((workcompletion)(&hdev->rxwork)), at: processonework+0x1ce/0x740 [ 75.308280] #2: ffff8fdd61a10078 (&hdev->lock){+.+.}-{3:3} at: hcileperadvreportevt+0x47/0x2f0 [bluetooth] [ 75.308304] #3: ffffffffb6ba4900 (rcureadlock){....}-{1:2}, at: hciconnectcfm+0x29/0x190 [bluetooth]
- References
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced02171da6e86a73e1b343b36722f5d9d5c04b3539Fixedc541d7b5e17987ed330798b07d4ad508859c1c93
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced02171da6e86a73e1b343b36722f5d9d5c04b3539Fixed168e28305b871d8ec604a8f51f35467b8d7ba05b
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedLast affecteda6c3af0a620082d191dabc69c4925b3e6c26dd48
Affected versions
v2.*
v3.*
v4.*
v5.*
v6.*
Database specific
vanir_signatures
[
{
"signature_type": "Function",
"id": "CVE-2024-54460-0474a15b",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@c541d7b5e17987ed330798b07d4ad508859c1c93",
"signature_version": "v1",
"target": {
"function": "iso_sock_listen",
"file": "net/bluetooth/iso.c"
},
"digest": {
"function_hash": "15587111462539369716171690134802693072",
"length": 582.0
},
"deprecated": false
},
{
"signature_type": "Function",
"id": "CVE-2024-54460-6ea143df",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@168e28305b871d8ec604a8f51f35467b8d7ba05b",
"signature_version": "v1",
"target": {
"function": "iso_listen_bis",
"file": "net/bluetooth/iso.c"
},
"digest": {
"function_hash": "74864258636593756801067458308788722549",
"length": 1264.0
},
"deprecated": false
},
{
"signature_type": "Function",
"id": "CVE-2024-54460-80cf3cf0",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@168e28305b871d8ec604a8f51f35467b8d7ba05b",
"signature_version": "v1",
"target": {
"function": "iso_sock_listen",
"file": "net/bluetooth/iso.c"
},
"digest": {
"function_hash": "15587111462539369716171690134802693072",
"length": 582.0
},
"deprecated": false
},
{
"signature_type": "Line",
"id": "CVE-2024-54460-81ff3238",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@c541d7b5e17987ed330798b07d4ad508859c1c93",
"signature_version": "v1",
"target": {
"file": "net/bluetooth/iso.c"
},
"digest": {
"threshold": 0.9,
"line_hashes": [
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},
"deprecated": false
},
{
"signature_type": "Line",
"id": "CVE-2024-54460-906ebcfe",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@168e28305b871d8ec604a8f51f35467b8d7ba05b",
"signature_version": "v1",
"target": {
"file": "net/bluetooth/iso.c"
},
"digest": {
"threshold": 0.9,
"line_hashes": [
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},
"deprecated": false
},
{
"signature_type": "Function",
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"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@c541d7b5e17987ed330798b07d4ad508859c1c93",
"signature_version": "v1",
"target": {
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"file": "net/bluetooth/iso.c"
},
"digest": {
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"length": 1264.0
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"deprecated": false
}
]