CVE-2022-50447

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Source
https://nvd.nist.gov/vuln/detail/CVE-2022-50447
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50447.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2022-50447
Downstream
Related
Published
2025-10-01T11:45:21Z
Modified
2025-10-21T13:02:53.676635Z
Summary
Bluetooth: hci_conn: Fix crash on hci_create_cis_sync
Details

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: hciconn: Fix crash on hcicreatecissync

When attempting to connect multiple ISO sockets without using DEFER_SETUP may result in the following crash:

BUG: KASAN: null-ptr-deref in hcicreatecis_sync+0x18b/0x2b0 Read of size 2 at addr 0000000000000036 by task kworker/u3:1/50

CPU: 0 PID: 50 Comm: kworker/u3:1 Not tainted 6.0.0-rc7-02243-gb84a13ff4eda #4373 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.0-1.fc36 04/01/2014 Workqueue: hci0 hcicmdsyncwork Call Trace: <TASK> dumpstacklvl+0x19/0x27 kasanreport+0xbc/0xf0 ? hcicreatecissync+0x18b/0x2b0 hcicreatecissync+0x18b/0x2b0 ? getlinkmode+0xd0/0xd0 ? _wwmutexlockslowpath+0x10/0x10 ? mutexlock+0xe0/0xe0 ? getlinkmode+0xd0/0xd0 hcicmdsyncwork+0x111/0x190 processonework+0x427/0x650 workerthread+0x87/0x750 ? processonework+0x650/0x650 kthread+0x14e/0x180 ? kthreadexit+0x50/0x50 retfromfork+0x22/0x30 </TASK>

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
Introduced
26afbd826ee326e63a334c37fd45e82e50a615ec
Fixed
a190cd9dc62d6ebeb679c1abe9dda4162dfefc84
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
26afbd826ee326e63a334c37fd45e82e50a615ec
Fixed
09a3b0c9c7c6b10587fbb610b718014703cff341
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
26afbd826ee326e63a334c37fd45e82e50a615ec
Fixed
50757a259ba78c4e938b5735e76ffec6cd0c942e

Affected versions

v5.*

v5.19
v5.19-rc8

v6.*

v6.0
v6.0-rc1
v6.0-rc2
v6.0-rc3
v6.0-rc4
v6.0-rc5
v6.0-rc6
v6.0-rc7
v6.0.1
v6.0.10
v6.0.11
v6.0.12
v6.0.13
v6.0.14
v6.0.15
v6.0.2
v6.0.3
v6.0.4
v6.0.5
v6.0.6
v6.0.7
v6.0.8
v6.0.9
v6.1
v6.1-rc1
v6.1-rc2
v6.1-rc3
v6.1-rc4
v6.1-rc5
v6.1-rc6
v6.1-rc7
v6.1-rc8
v6.1.1

Database specific

vanir_signatures

[
    {
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@50757a259ba78c4e938b5735e76ffec6cd0c942e",
        "target": {
            "function": "hci_create_cis_sync",
            "file": "net/bluetooth/hci_conn.c"
        },
        "signature_type": "Function",
        "deprecated": false,
        "digest": {
            "function_hash": "172732881651489758618342961829993399324",
            "length": 1115.0
        },
        "signature_version": "v1",
        "id": "CVE-2022-50447-12dea7cc"
    },
    {
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@09a3b0c9c7c6b10587fbb610b718014703cff341",
        "target": {
            "file": "net/bluetooth/hci_conn.c"
        },
        "signature_type": "Line",
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "28064662071436202786078725538235071746",
                "86716207678745321715631704962240716015",
                "193416752604263688399732435136371758945",
                "174658152701884044175138406297509826711"
            ],
            "threshold": 0.9
        },
        "signature_version": "v1",
        "id": "CVE-2022-50447-329e6884"
    },
    {
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@a190cd9dc62d6ebeb679c1abe9dda4162dfefc84",
        "target": {
            "function": "hci_create_cis_sync",
            "file": "net/bluetooth/hci_conn.c"
        },
        "signature_type": "Function",
        "deprecated": false,
        "digest": {
            "function_hash": "172732881651489758618342961829993399324",
            "length": 1115.0
        },
        "signature_version": "v1",
        "id": "CVE-2022-50447-81865cb4"
    },
    {
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@09a3b0c9c7c6b10587fbb610b718014703cff341",
        "target": {
            "function": "hci_create_cis_sync",
            "file": "net/bluetooth/hci_conn.c"
        },
        "signature_type": "Function",
        "deprecated": false,
        "digest": {
            "function_hash": "172732881651489758618342961829993399324",
            "length": 1115.0
        },
        "signature_version": "v1",
        "id": "CVE-2022-50447-91f59493"
    },
    {
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@50757a259ba78c4e938b5735e76ffec6cd0c942e",
        "target": {
            "file": "net/bluetooth/hci_conn.c"
        },
        "signature_type": "Line",
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "28064662071436202786078725538235071746",
                "86716207678745321715631704962240716015",
                "193416752604263688399732435136371758945",
                "174658152701884044175138406297509826711"
            ],
            "threshold": 0.9
        },
        "signature_version": "v1",
        "id": "CVE-2022-50447-bb724b14"
    },
    {
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@a190cd9dc62d6ebeb679c1abe9dda4162dfefc84",
        "target": {
            "file": "net/bluetooth/hci_conn.c"
        },
        "signature_type": "Line",
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "28064662071436202786078725538235071746",
                "86716207678745321715631704962240716015",
                "193416752604263688399732435136371758945",
                "174658152701884044175138406297509826711"
            ],
            "threshold": 0.9
        },
        "signature_version": "v1",
        "id": "CVE-2022-50447-f43980eb"
    }
]

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.0.0
Fixed
6.0.16
Type
ECOSYSTEM
Events
Introduced
6.1.0
Fixed
6.1.2