CVE-2022-49298

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Source
https://cve.org/CVERecord?id=CVE-2022-49298
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49298.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-49298
Downstream
Related
Published
2025-02-26T02:01:27.111Z
Modified
2026-03-12T03:24:56.105097Z
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
staging: rtl8712: fix uninit-value in r871xu_drv_init()
Details

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

staging: rtl8712: fix uninit-value in r871xudrvinit()

When 'tmpU1b' returns from r8712read8(padapter, EE9346CR) is 0, 'mac[6]' will not be initialized.

BUG: KMSAN: uninit-value in r871xudrvinit+0x2d54/0x3070 drivers/staging/rtl8712/usbintf.c:541 r871xudrvinit+0x2d54/0x3070 drivers/staging/rtl8712/usbintf.c:541 usbprobeinterface+0xf19/0x1600 drivers/usb/core/driver.c:396 really_probe+0x653/0x14b0 drivers/base/dd.c:596 __driverprobedevice+0x3e9/0x530 drivers/base/dd.c:752 driverprobedevice drivers/base/dd.c:782 [inline] __deviceattachdriver+0x79f/0x1120 drivers/base/dd.c:899 bus_foreachdrv+0x2d6/0x3f0 drivers/base/bus.c:427 __deviceattach+0x593/0x8e0 drivers/base/dd.c:970 deviceinitialprobe+0x4a/0x60 drivers/base/dd.c:1017 busprobedevice+0x17b/0x3e0 drivers/base/bus.c:487 deviceadd+0x1fff/0x26e0 drivers/base/core.c:3405 usbsetconfiguration+0x37e9/0x3ed0 drivers/usb/core/message.c:2170 usbgenericdriverprobe+0x13c/0x300 drivers/usb/core/generic.c:238 usbprobedevice+0x309/0x570 drivers/usb/core/driver.c:293 reallyprobe+0x653/0x14b0 drivers/base/dd.c:596 __driverprobedevice+0x3e9/0x530 drivers/base/dd.c:752 driverprobedevice drivers/base/dd.c:782 [inline] __deviceattachdriver+0x79f/0x1120 drivers/base/dd.c:899 bus_foreachdrv+0x2d6/0x3f0 drivers/base/bus.c:427 __deviceattach+0x593/0x8e0 drivers/base/dd.c:970 deviceinitialprobe+0x4a/0x60 drivers/base/dd.c:1017 busprobedevice+0x17b/0x3e0 drivers/base/bus.c:487 deviceadd+0x1fff/0x26e0 drivers/base/core.c:3405 usbnewdevice+0x1b8e/0x2950 drivers/usb/core/hub.c:2566 hubportconnect drivers/usb/core/hub.c:5358 [inline] hubportconnectchange drivers/usb/core/hub.c:5502 [inline] portevent drivers/usb/core/hub.c:5660 [inline] hubevent+0x58e3/0x89e0 drivers/usb/core/hub.c:5742 processonework+0xdb6/0x1820 kernel/workqueue.c:2307 workerthread+0x10b3/0x21e0 kernel/workqueue.c:2454 kthread+0x3c7/0x500 kernel/kthread.c:377 retfromfork+0x1f/0x30

Local variable mac created at: r871xudrvinit+0x1771/0x3070 drivers/staging/rtl8712/usbintf.c:394 usbprobe_interface+0xf19/0x1600 drivers/usb/core/driver.c:396

KMSAN: uninit-value in r871xudrvinit https://syzkaller.appspot.com/bug?id=3cd92b1d85428b128503bfa7a250294c9ae00bd8

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49298.json"
}
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
2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef
Fixed
0b7371a22489cbb2e8e826ca03fb5ce92afb04fe
Fixed
277faa442fe0c59f418ac53f47a78e1266addd65
Fixed
a6535d00a9d54ce1c2a8d86a85001ffb6844f9b2
Fixed
52a0d88c328098b4e9fb8f2f3877fec0eff4104b
Fixed
ff727ab0b7d7a56b5ef281f12abd00c4b85894e9
Fixed
f36e754a1f0bafb9feeea63463de78080acb6de0
Fixed
76a964ad0ea8f2b10abd69a7532e174a28258283
Fixed
70df04433fd351ba72bc635bd0b5fe443d9ac964
Fixed
0458e5428e5e959d201a40ffe71d762a79ecedc4

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49298.json"