ghsa-whw8-2wcg-hxvj
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
wifi: mt76: mt7921e: fix crash in chip reset fail
In case of drv own fail in reset, we may need to run mac_reset several times. The sequence would trigger system crash as the log below.
Because we do not re-enable/schedule "tx_napi" before disable it again, the process would keep waiting for state change in napi_diable(). To avoid the problem and keep status synchronize for each run, goto final resource handling if drv own failed.
[ 5857.353423] mt7921e 0000:3b:00.0: driver own failed
[ 5858.433427] mt7921e 0000:3b:00.0: Timeout for driver own
[ 5859.633430] mt7921e 0000:3b:00.0: driver own failed
[ 5859.633444] ------------[ cut here ]------------
[ 5859.633446] WARNING: CPU: 6 at kernel/kthread.c:659 kthread_park+0x11d
[ 5859.633717] Workqueue: mt76 mt7921_mac_reset_work [mt7921_common]
[ 5859.633728] RIP: 0010:kthread_park+0x11d/0x150
[ 5859.633736] RSP: 0018:ffff8881b676fc68 EFLAGS: 00010202
......
[ 5859.633766] Call Trace:
[ 5859.633768]
{
"affected": [],
"aliases": [
"CVE-2022-48705"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-03T18:15:08Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7921e: fix crash in chip reset fail\n\nIn case of drv own fail in reset, we may need to run mac_reset several\ntimes. The sequence would trigger system crash as the log below.\n\nBecause we do not re-enable/schedule \"tx_napi\" before disable it again,\nthe process would keep waiting for state change in napi_diable(). To\navoid the problem and keep status synchronize for each run, goto final\nresource handling if drv own failed.\n\n[ 5857.353423] mt7921e 0000:3b:00.0: driver own failed\n[ 5858.433427] mt7921e 0000:3b:00.0: Timeout for driver own\n[ 5859.633430] mt7921e 0000:3b:00.0: driver own failed\n[ 5859.633444] ------------[ cut here ]------------\n[ 5859.633446] WARNING: CPU: 6 at kernel/kthread.c:659 kthread_park+0x11d\n[ 5859.633717] Workqueue: mt76 mt7921_mac_reset_work [mt7921_common]\n[ 5859.633728] RIP: 0010:kthread_park+0x11d/0x150\n[ 5859.633736] RSP: 0018:ffff8881b676fc68 EFLAGS: 00010202\n......\n[ 5859.633766] Call Trace:\n[ 5859.633768] \u003cTASK\u003e\n[ 5859.633771] mt7921e_mac_reset+0x176/0x6f0 [mt7921e]\n[ 5859.633778] mt7921_mac_reset_work+0x184/0x3a0 [mt7921_common]\n[ 5859.633785] ? mt7921_mac_set_timing+0x520/0x520 [mt7921_common]\n[ 5859.633794] ? __kasan_check_read+0x11/0x20\n[ 5859.633802] process_one_work+0x7ee/0x1320\n[ 5859.633810] worker_thread+0x53c/0x1240\n[ 5859.633818] kthread+0x2b8/0x370\n[ 5859.633824] ? process_one_work+0x1320/0x1320\n[ 5859.633828] ? kthread_complete_and_exit+0x30/0x30\n[ 5859.633834] ret_from_fork+0x1f/0x30\n[ 5859.633842] \u003c/TASK\u003e",
"id": "GHSA-whw8-2wcg-hxvj",
"modified": "2024-05-03T18:30:37Z",
"published": "2024-05-03T18:30:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48705"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f7f3001723e337568017e8617974f29bc8b2f595"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/fa3fbe64037839f448dc569212bafc5a495d8219"
}
],
"schema_version": "1.4.0",
"severity": []
}
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- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Patched: This vulnerability was successfully patched by the user reporting the sighting.
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- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.