# CVE-2022-49298: linux: In the Linux kernel, the following vulnerability has been resolved:  staging: rtl8712: fix uninit-value in r871xu_drv...

CVE-2022-49298 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49298, released February 26, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2022-49298
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0027
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 26, 2025

## Description

In the Linux kernel, the following vulnerability has been resolved:  staging: rtl8712: fix uninit-value in r871xu_drv_init()  When 'tmpU1b' returns from r8712_read8(padapter, EE_9346CR) is 0, 'mac[6]' will not be initialized.  BUG: KMSAN: uninit-value in r871xu_drv_init+0x2d54/0x3070 drivers/staging/rtl8712/usb_intf.c:541  r871xu_drv_init+0x2d54/0x3070 drivers/staging/rtl8712/usb_intf.c:541  usb_probe_interface+0xf19/0x1600 drivers/usb/core/driver.c:396  really_probe+0x653/0x14b0 drivers/base/dd.c:596  __driver_probe_device+0x3e9/0x530 drivers/base/dd.c:752  driver_probe_device drivers/base/dd.c:782 [inline]  __device_attach_driver+0x79f/0x1120 drivers/base/dd.c:899  bus_for_each_drv+0x2d6/0x3f0 drivers/base/bus.c:427  __device_attach+0x593/0x8e0 drivers/base/dd.c:970  device_initial_probe+0x4a/0x60 drivers/base/dd.c:1017  bus_probe_device+0x17b/0x3e0 drivers/base/bus.c:487  device_add+0x1fff/0x26e0 drivers/base/core.c:3405  usb_set_configuration+0x37e9/0x3ed0 drivers/usb/core/message.c:2170  usb_generic_driver_probe+0x13c/0x300 drivers/usb/core/generic.c:238  usb_probe_device+0x309/0x570 drivers/usb/core/driver.c:293  really_probe+0x653/0x14b0 drivers/base/dd.c:596  __driver_probe_device+0x3e9/0x530 drivers/base/dd.c:752  driver_probe_device drivers/base/dd.c:782 [inline]  __device_attach_driver+0x79f/0x1120 drivers/base/dd.c:899  bus_for_each_drv+0x2d6/0x3f0 drivers/base/bus.c:427  __device_attach+0x593/0x8e0 drivers/base/dd.c:970  device_initial_probe+0x4a/0x60 drivers/base/dd.c:1017  bus_probe_device+0x17b/0x3e0 drivers/base/bus.c:487  device_add+0x1fff/0x26e0 drivers/base/core.c:3405  usb_new_device+0x1b8e/0x2950 drivers/usb/core/hub.c:2566  hub_port_connect drivers/usb/core/hub.c:5358 [inline]  hub_port_connect_change drivers/usb/core/hub.c:5502 [inline]  port_event drivers/usb/core/hub.c:5660 [inline]  hub_event+0x58e3/0x89e0 drivers/usb/core/hub.c:5742  process_one_work+0xdb6/0x1820 kernel/workqueue.c:2307  worker_thread+0x10b3/0x21e0 kernel/workqueue.c:2454  kthread+0x3c7/0x500 kernel/kthread.c:377  ret_from_fork+0x1f/0x30  Local variable mac created at:  r871xu_drv_init+0x1771/0x3070 drivers/staging/rtl8712/usb_intf.c:394  usb_probe_interface+0xf19/0x1600 drivers/usb/core/driver.c:396  KMSAN: uninit-value in r871xu_drv_init https://syzkaller.appspot.com/bug?id=3cd92b1d85428b128503bfa7a250294c9ae00bd8

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 5.18.5-1 | [DEBIAN-CVE-2022-49298](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49298.md) | Feb 26, 2025 |
| Linux | linux Debian 13.5 (trixie) | 5.18.5-1 | [DEBIAN-CVE-2022-49298](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49298.md) | Feb 26, 2025 |
| Linux | linux Debian 14 | 5.18.5-1 | [DEBIAN-CVE-2022-49298](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49298.md) | Feb 26, 2025 |

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Data as of 2026-11-08T19:12:23Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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