{"cve":"CVE-2022-50715","nvd":{"published":"2025-12-24T13:15:58.130","modified":"2026-06-17T05:24:03.260","status":"Deferred","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid1: stop mdx_raid1 thread when raid1 array run failed\n\nfail run raid1 array when we assemble array with the inactive disk only,\nbut the mdx_raid1 thread were not stop, Even if the associated resources\nhave been released. it will caused a NULL dereference when we do poweroff.\n\nThis causes the following Oops:\n    [  287.587787] BUG: kernel NULL pointer dereference, address: 0000000000000070\n    [  287.594762] #PF: supervisor read access in kernel mode\n    [  287.599912] #PF: error_code(0x0000) - not-present page\n    [  287.605061] PGD 0 P4D 0\n    [  287.607612] Oops: 0000 [#1] SMP NOPTI\n    [  287.611287] CPU: 3 PID: 5265 Comm: md0_raid1 Tainted: G     U            5.10.146 #0\n    [  287.619029] Hardware name: xxxxxxx/To be filled by O.E.M, BIOS 5.19 06/16/2022\n    [  287.626775] RIP: 0010:md_check_recovery+0x57/0x500 [md_mod]\n    [  287.632357] Code: fe 01 00 00 48 83 bb 10 03 00 00 00 74 08 48 89 ......\n    [  287.651118] RSP: 0018:ffffc90000433d78 EFLAGS: 00010202\n    [  287.656347] RAX: 0000000000000000 RBX: ffff888105986800 RCX: 0000000000000000\n    [  287.663491] RDX: ffffc90000433bb0 RSI: 00000000ffffefff RDI: ffff888105986800\n    [  287.670634] RBP: ffffc90000433da0 R08: 0000000000000000 R09: c0000000ffffefff\n    [  287.677771] R10: 0000000000000001 R11: ffffc90000433ba8 R12: ffff888105986800\n    [  287.684907] R13: 0000000000000000 R14: fffffffffffffe00 R15: ffff888100b6b500\n    [  287.692052] FS:  0000000000000000(0000) GS:ffff888277f80000(0000) knlGS:0000000000000000\n    [  287.700149] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n    [  287.705897] CR2: 0000000000000070 CR3: 000000000320a000 CR4: 0000000000350ee0\n    [  287.713033] Call Trace:\n    [  287.715498]  raid1d+0x6c/0xbbb [raid1]\n    [  287.719256]  ? __schedule+0x1ff/0x760\n    [  287.722930]  ? schedule+0x3b/0xb0\n    [  287.726260]  ? schedule_timeout+0x1ed/0x290\n    [  287.730456]  ? __switch_to+0x11f/0x400\n    [  287.734219]  md_thread+0xe9/0x140 [md_mod]\n    [  287.738328]  ? md_thread+0xe9/0x140 [md_mod]\n    [  287.742601]  ? wait_woken+0x80/0x80\n    [  287.746097]  ? md_register_thread+0xe0/0xe0 [md_mod]\n    [  287.751064]  kthread+0x11a/0x140\n    [  287.754300]  ? kthread_park+0x90/0x90\n    [  287.757974]  ret_from_fork+0x1f/0x30\n\nIn fact, when raid1 array run fail, we need to do\nmd_unregister_thread() before raid1_free().","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/0c7c7468c3ae222e297b7dc74d6ccb69c4d0183c","https://git.kernel.org/stable/c/10d713532ffc67b13df61ed9c138a8ce0a186236","https://git.kernel.org/stable/c/110f14a7b2eb5b8aa9df5af2d629524f2a07d543","https://git.kernel.org/stable/c/19d5a0e17aba92b10d895e40ec782768cf00da23","https://git.kernel.org/stable/c/22be44212cad8be96860346882d8e694b0b437b6"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:17:07.138532058+00:00"},"epss":{"cve":"CVE-2022-50715","score":0.00284,"percentile":0.20954,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}