CVE-2022-48871
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-48871
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-48871.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-48871
- Downstream
- Related
- Published
- 2024-08-21T06:10:01Z
- Modified
- 2025-10-08T06:55:17.584758Z
- Summary
- tty: serial: qcom-geni-serial: fix slab-out-of-bounds on RX FIFO buffer
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
tty: serial: qcom-geni-serial: fix slab-out-of-bounds on RX FIFO buffer
Driver's probe allocates memory for RX FIFO (port->rxfifo) based on default RX FIFO depth, e.g. 16. Later during serial startup the qcomgeniserialportsetup() updates the RX FIFO depth (port->rxfifo_depth) to match real device capabilities, e.g. to 32.
The RX UART handle code will read "port->rxfifodepth" number of words into "port->rx_fifo" buffer, thus exceeding the bounds. This can be observed in certain configurations with Qualcomm Bluetooth HCI UART device and KASAN:
Bluetooth: hci0: QCA Product ID :0x00000010 Bluetooth: hci0: QCA SOC Version :0x400a0200 Bluetooth: hci0: QCA ROM Version :0x00000200 Bluetooth: hci0: QCA Patch Version:0x00000d2b Bluetooth: hci0: QCA controller version 0x02000200 Bluetooth: hci0: QCA Downloading qca/htbtfw20.tlv bluetooth hci0: Direct firmware load for qca/htbtfw20.tlv failed with error -2 Bluetooth: hci0: QCA Failed to request file: qca/htbtfw20.tlv (-2) Bluetooth: hci0: QCA Failed to download patch (-2) ================================================================== BUG: KASAN: slab-out-of-bounds in handlerxuart+0xa8/0x18c Write of size 4 at addr ffff279347d578c0 by task swapper/0/0
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.1.0-rt5-00350-gb2450b7e00be-dirty #26 Hardware name: Qualcomm Technologies, Inc. Robotics RB5 (DT) Call trace: dumpbacktrace.part.0+0xe0/0xf0 showstack+0x18/0x40 dumpstacklvl+0x8c/0xb8 printreport+0x188/0x488 kasanreport+0xb4/0x100 _asanstore4+0x80/0xa4 handlerxuart+0xa8/0x18c qcomgeniserialhandlerx+0x84/0x9c qcomgeniserialisr+0x24c/0x760 _handleirqeventpercpu+0x108/0x500 handleirqevent+0x6c/0x110 handlefasteoiirq+0x138/0x2cc generichandledomainirq+0x48/0x64
If the RX FIFO depth changes after probe, be sure to resize the buffer.
- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/894681682dbefdad917b88f86cde1069140a047a
- https://git.kernel.org/stable/c/b8caf69a6946e18ffebad49847e258f5b6d52ac2
- https://git.kernel.org/stable/c/cb53a3366eb28fed67850c80afa52075bb71a38a
- https://git.kernel.org/stable/c/fd524ca7fe45b8a06dca2dd546d62684a9768f95
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
-
Introducedf9d690b6ece7ec9a6ff6b588df95a010ab2d66f9Fixed894681682dbefdad917b88f86cde1069140a047a
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedf9d690b6ece7ec9a6ff6b588df95a010ab2d66f9Fixedcb53a3366eb28fed67850c80afa52075bb71a38a
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedf9d690b6ece7ec9a6ff6b588df95a010ab2d66f9Fixedfd524ca7fe45b8a06dca2dd546d62684a9768f95
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedf9d690b6ece7ec9a6ff6b588df95a010ab2d66f9Fixedb8caf69a6946e18ffebad49847e258f5b6d52ac2
Affected versions
v5.*
v5.10
v5.10-rc1
v5.10-rc2
v5.10-rc3
v5.10-rc4
v5.10-rc5
v5.10-rc6
v5.10-rc7
v5.10.1
v5.10.10
v5.10.100
v5.10.101
v5.10.102
v5.10.103
v5.10.104
v5.10.105
v5.10.106
v5.10.107
v5.10.108
v5.10.109
v5.10.11
v5.10.110
v5.10.111
v5.10.112
v5.10.113
v5.10.114
v5.10.115
v5.10.116
v5.10.117
v5.10.118
v5.10.119
v5.10.12
v5.10.120
v5.10.121
v5.10.122
v5.10.123
v5.10.124
v5.10.125
v5.10.126
v5.10.127
v5.10.128
v5.10.129
v5.10.13
v5.10.130
v5.10.131
v5.10.132
v5.10.133
v5.10.134
v5.10.135
v5.10.136
v5.10.137
v5.10.138
v5.10.139
v5.10.14
v5.10.140
v5.10.141
v5.10.142
v5.10.143
v5.10.144
v5.10.145
v5.10.146
v5.10.147
v5.10.148
v5.10.149
v5.10.15
v5.10.150
v5.10.151
v5.10.152
v5.10.153
v5.10.154
v5.10.155
v5.10.156
v5.10.157
v5.10.158
v5.10.159
v5.10.16
v5.10.160
v5.10.161
v5.10.162
v5.10.163
v5.10.164
v5.10.17
v5.10.18
v5.10.19
v5.10.2
v5.10.20
v5.10.21
v5.10.22
v5.10.23
v5.10.24
v5.10.25
v5.10.26
v5.10.27
v5.10.28
v5.10.29
v5.10.3
v5.10.30
v5.10.31
v5.10.32
v5.10.33
v5.10.34
v5.10.35
v5.10.36
v5.10.37
v5.10.38
v5.10.39
v5.10.4
v5.10.40
v5.10.41
v5.10.42
v5.10.43
v5.10.44
v5.10.45
v5.10.46
v5.10.47
v5.10.48
v5.10.49
v5.10.5
v5.10.50
v5.10.51
v5.10.52
v5.10.53
v5.10.54
v5.10.55
v5.10.56
v5.10.57
v5.10.58
v5.10.59
v5.10.6
v5.10.60
v5.10.61
v5.10.62
v5.10.63
v5.10.64
v5.10.65
v5.10.66
v5.10.67
v5.10.68
v5.10.69
v5.10.7
v5.10.70
v5.10.71
v5.10.72
v5.10.73
v5.10.74
v5.10.75
v5.10.76
v5.10.77
v5.10.78
v5.10.79
v5.10.8
v5.10.80
v5.10.81
v5.10.82
v5.10.83
v5.10.84
v5.10.85
v5.10.86
v5.10.87
v5.10.88
v5.10.89
v5.10.9
v5.10.90
v5.10.91
v5.10.92
v5.10.93
v5.10.94
v5.10.95
v5.10.96
v5.10.97
v5.10.98
v5.10.99
v5.11
v5.11-rc1
v5.11-rc2
v5.11-rc3
v5.11-rc4
v5.11-rc5
v5.11-rc6
v5.11-rc7
v5.12
v5.12-rc1
v5.12-rc1-dontuse
v5.12-rc2
v5.12-rc3
v5.12-rc4
v5.12-rc5
v5.12-rc6
v5.12-rc7
v5.12-rc8
v5.13
v5.13-rc1
v5.13-rc2
v5.13-rc3
v5.13-rc4
v5.13-rc5
v5.13-rc6
v5.13-rc7
v5.14
v5.14-rc1
v5.14-rc2
v5.14-rc3
v5.14-rc4
v5.14-rc5
v5.14-rc6
v5.14-rc7
v5.15
v5.15-rc1
v5.15-rc2
v5.15-rc3
v5.15-rc4
v5.15-rc5
v5.15-rc6
v5.15-rc7
v5.15.1
v5.15.10
v5.15.11
v5.15.12
v5.15.13
v5.15.14
v5.15.15
v5.15.16
v5.15.17
v5.15.18
v5.15.19
v5.15.2
v5.15.20
v5.15.21
v5.15.22
v5.15.23
v5.15.24
v5.15.25
v5.15.26
v5.15.27
v5.15.28
v5.15.29
v5.15.3
v5.15.30
v5.15.31
v5.15.32
v5.15.33
v5.15.34
v5.15.35
v5.15.36
v5.15.37
v5.15.38
v5.15.39
v5.15.4
v5.15.40
v5.15.41
v5.15.42
v5.15.43
v5.15.44
v5.15.45
v5.15.46
v5.15.47
v5.15.48
v5.15.49
v5.15.5
v5.15.50
v5.15.51
v5.15.52
v5.15.53
v5.15.54
v5.15.55
v5.15.56
v5.15.57
v5.15.58
v5.15.59
v5.15.6
v5.15.60
v5.15.61
v5.15.62
v5.15.63
v5.15.64
v5.15.65
v5.15.66
v5.15.67
v5.15.68
v5.15.69
v5.15.7
v5.15.70
v5.15.71
v5.15.72
v5.15.73
v5.15.74
v5.15.75
v5.15.76
v5.15.77
v5.15.78
v5.15.79
v5.15.8
v5.15.80
v5.15.81
v5.15.82
v5.15.83
v5.15.84
v5.15.85
v5.15.86
v5.15.87
v5.15.88
v5.15.89
v5.15.9
v5.16
v5.16-rc1
v5.16-rc2
v5.16-rc3
v5.16-rc4
v5.16-rc5
v5.16-rc6
v5.16-rc7
v5.16-rc8
v5.17
v5.17-rc1
v5.17-rc2
v5.17-rc3
v5.17-rc4
v5.17-rc5
v5.17-rc6
v5.17-rc7
v5.17-rc8
v5.18
v5.18-rc1
v5.18-rc2
v5.18-rc3
v5.18-rc4
v5.18-rc5
v5.18-rc6
v5.18-rc7
v5.19
v5.19-rc1
v5.19-rc2
v5.19-rc3
v5.19-rc4
v5.19-rc5
v5.19-rc6
v5.19-rc7
v5.19-rc8
v5.6
v5.6-rc6
v5.6-rc7
v5.7
v5.7-rc1
v5.7-rc2
v5.7-rc3
v5.7-rc4
v5.7-rc5
v5.7-rc6
v5.7-rc7
v5.8
v5.8-rc1
v5.8-rc2
v5.8-rc3
v5.8-rc4
v5.8-rc5
v5.8-rc6
v5.8-rc7
v5.9
v5.9-rc1
v5.9-rc2
v5.9-rc3
v5.9-rc4
v5.9-rc5
v5.9-rc6
v5.9-rc7
v5.9-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
v6.1
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
v6.1.2
v6.1.3
v6.1.4
v6.1.5
v6.1.6
v6.1.7
v6.2-rc1
v6.2-rc2
v6.2-rc3
v6.2-rc4
Database specific
{
"vanir_signatures": [
{
"signature_type": "Function",
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@fd524ca7fe45b8a06dca2dd546d62684a9768f95",
"target": {
"file": "drivers/tty/serial/qcom_geni_serial.c",
"function": "get_tx_fifo_size"
},
"id": "CVE-2022-48871-2259fbbe",
"digest": {
"length": 330.0,
"function_hash": "305585877774668691117593216647265266616"
},
"signature_version": "v1"
},
{
"signature_type": "Function",
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@894681682dbefdad917b88f86cde1069140a047a",
"target": {
"file": "drivers/tty/serial/qcom_geni_serial.c",
"function": "get_tx_fifo_size"
},
"id": "CVE-2022-48871-269b8300",
"digest": {
"length": 330.0,
"function_hash": "305585877774668691117593216647265266616"
},
"signature_version": "v1"
},
{
"signature_type": "Line",
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@fd524ca7fe45b8a06dca2dd546d62684a9768f95",
"target": {
"file": "drivers/tty/serial/qcom_geni_serial.c"
},
"id": "CVE-2022-48871-2c0fa343",
"digest": {
"line_hashes": [
"236834734333834283689574037273837108244",
"180936648766664018920723353304329730357",
"278772162823895019490610030443248210672",
"301989617982826113868158495913726815647",
"217263616690670670480962855453353902751",
"10779121583714324314904463487158714357",
"251166071809863722792404077904989465800",
"204672905421808818665049131733887179356",
"2638034968277745619855981627139975654",
"263569828809035610953659143720347736579",
"53580244670639378819065682613791892448",
"35035079818983291881173074191679454745",
"215669652815894330615866576602417724776",
"329632607124222367578589970525805877514",
"5058216810648193317591333956802380854",
"154528486939400594359141792389547533814",
"3215150745624212610622443177457928810",
"83840798300860499350980764440647929851"
],
"threshold": 0.9
},
"signature_version": "v1"
},
{
"signature_type": "Line",
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@cb53a3366eb28fed67850c80afa52075bb71a38a",
"target": {
"file": "drivers/tty/serial/qcom_geni_serial.c"
},
"id": "CVE-2022-48871-308c4442",
"digest": {
"line_hashes": [
"236834734333834283689574037273837108244",
"180936648766664018920723353304329730357",
"278772162823895019490610030443248210672",
"301989617982826113868158495913726815647",
"217263616690670670480962855453353902751",
"10779121583714324314904463487158714357",
"251166071809863722792404077904989465800",
"204672905421808818665049131733887179356",
"2638034968277745619855981627139975654",
"263569828809035610953659143720347736579",
"53580244670639378819065682613791892448",
"35035079818983291881173074191679454745",
"215669652815894330615866576602417724776",
"329632607124222367578589970525805877514",
"5058216810648193317591333956802380854",
"154528486939400594359141792389547533814",
"3215150745624212610622443177457928810",
"83840798300860499350980764440647929851"
],
"threshold": 0.9
},
"signature_version": "v1"
},
{
"signature_type": "Function",
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@cb53a3366eb28fed67850c80afa52075bb71a38a",
"target": {
"file": "drivers/tty/serial/qcom_geni_serial.c",
"function": "get_tx_fifo_size"
},
"id": "CVE-2022-48871-3a78c2f6",
"digest": {
"length": 330.0,
"function_hash": "305585877774668691117593216647265266616"
},
"signature_version": "v1"
},
{
"signature_type": "Function",
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@894681682dbefdad917b88f86cde1069140a047a",
"target": {
"file": "drivers/tty/serial/qcom_geni_serial.c",
"function": "qcom_geni_serial_port_setup"
},
"id": "CVE-2022-48871-75f5c643",
"digest": {
"length": 1058.0,
"function_hash": "26721594248102303666507794623476906034"
},
"signature_version": "v1"
},
{
"signature_type": "Function",
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@cb53a3366eb28fed67850c80afa52075bb71a38a",
"target": {
"file": "drivers/tty/serial/qcom_geni_serial.c",
"function": "qcom_geni_serial_port_setup"
},
"id": "CVE-2022-48871-84505855",
"digest": {
"length": 1058.0,
"function_hash": "26721594248102303666507794623476906034"
},
"signature_version": "v1"
},
{
"signature_type": "Function",
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@b8caf69a6946e18ffebad49847e258f5b6d52ac2",
"target": {
"file": "drivers/tty/serial/qcom_geni_serial.c",
"function": "get_tx_fifo_size"
},
"id": "CVE-2022-48871-930df810",
"digest": {
"length": 330.0,
"function_hash": "305585877774668691117593216647265266616"
},
"signature_version": "v1"
},
{
"signature_type": "Line",
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@b8caf69a6946e18ffebad49847e258f5b6d52ac2",
"target": {
"file": "drivers/tty/serial/qcom_geni_serial.c"
},
"id": "CVE-2022-48871-9a8afe99",
"digest": {
"line_hashes": [
"236834734333834283689574037273837108244",
"180936648766664018920723353304329730357",
"278772162823895019490610030443248210672",
"301989617982826113868158495913726815647",
"217263616690670670480962855453353902751",
"10779121583714324314904463487158714357",
"251166071809863722792404077904989465800",
"204672905421808818665049131733887179356",
"2638034968277745619855981627139975654",
"263569828809035610953659143720347736579",
"53580244670639378819065682613791892448",
"35035079818983291881173074191679454745",
"215669652815894330615866576602417724776",
"329632607124222367578589970525805877514",
"5058216810648193317591333956802380854",
"154528486939400594359141792389547533814",
"3215150745624212610622443177457928810",
"83840798300860499350980764440647929851"
],
"threshold": 0.9
},
"signature_version": "v1"
},
{
"signature_type": "Function",
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@b8caf69a6946e18ffebad49847e258f5b6d52ac2",
"target": {
"file": "drivers/tty/serial/qcom_geni_serial.c",
"function": "qcom_geni_serial_port_setup"
},
"id": "CVE-2022-48871-ca589e8c",
"digest": {
"length": 1079.0,
"function_hash": "107820405728749255118541045165019522647"
},
"signature_version": "v1"
},
{
"signature_type": "Function",
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@fd524ca7fe45b8a06dca2dd546d62684a9768f95",
"target": {
"file": "drivers/tty/serial/qcom_geni_serial.c",
"function": "qcom_geni_serial_port_setup"
},
"id": "CVE-2022-48871-cab31910",
"digest": {
"length": 1058.0,
"function_hash": "26721594248102303666507794623476906034"
},
"signature_version": "v1"
},
{
"signature_type": "Line",
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@894681682dbefdad917b88f86cde1069140a047a",
"target": {
"file": "drivers/tty/serial/qcom_geni_serial.c"
},
"id": "CVE-2022-48871-fe9960a2",
"digest": {
"line_hashes": [
"80358220202050186146882416787160706991",
"180936648766664018920723353304329730357",
"278772162823895019490610030443248210672",
"301989617982826113868158495913726815647",
"217263616690670670480962855453353902751",
"10779121583714324314904463487158714357",
"251166071809863722792404077904989465800",
"204672905421808818665049131733887179356",
"2638034968277745619855981627139975654",
"263569828809035610953659143720347736579",
"53580244670639378819065682613791892448",
"35035079818983291881173074191679454745",
"215669652815894330615866576602417724776",
"329632607124222367578589970525805877514",
"5058216810648193317591333956802380854",
"154528486939400594359141792389547533814",
"3215150745624212610622443177457928810",
"83840798300860499350980764440647929851"
],
"threshold": 0.9
},
"signature_version": "v1"
}
]
}