CVE-2022-50715: md/raid1: stop mdx_raid1 thread when raid1 array run failed

Deferred
AliasesUBUNTU-CVE-2022-50715DEBIAN-CVE-2022-50715
Published 24-12-2025Last modified 23-05-2026

Vulnerability summary

CVE-2022-50715 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.28% chance of exploitation in the next 30 days, higher than 20.9% of scored vulnerabilities.

Priority
Insufficient evidence

No CVSS vector published; no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.28%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 7 · Related 5
RHSA-2023:2458RHSA-2023:2951SUSE-SU-2026:0263-1SUSE-SU-2026:0316-1SUSE-SU-2026:0317-1SUSE-SU-2026:0411-1

Timeline

  1. 24-12-2025
    PublishedVulnerability first disclosed.
  2. 23-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: md/raid1: stop mdx_raid1 thread when raid1 array run failed fail run raid1 array when we assemble array with the inactive disk only, but the mdx_raid1 thread were not stop, Even if the associated resources have been released. it will caused a NULL dereference when we do poweroff. This causes the following Oops: [ 287.587787] BUG: kernel NULL pointer dereference, address: 0000000000000070 [ 287.594762] #PF: supervisor read access in kernel mode [ 287.599912] #PF: error_code(0x0000) - not-present page [ 287.605061] PGD 0 P4D 0 [ 287.607612] Oops: 0000 [#1] SMP NOPTI [ 287.611287] CPU: 3 PID: 5265 Comm: md0_raid1 Tainted: G U 5.10.146 #0 [ 287.619029] Hardware name: xxxxxxx/To be filled by O.E.M, BIOS 5.19 06/16/2022 [ 287.626775] RIP: 0010:md_check_recovery+0x57/0x500 [md_mod] [ 287.632357] Code: fe 01 00 00 48 83 bb 10 03 00 00 00 74 08 48 89 ...... [ 287.651118] RSP: 0018:ffffc90000433d78 EFLAGS: 00010202 [ 287.656347] RAX: 0000000000000000 RBX: ffff888105986800 RCX: 0000000000000000 [ 287.663491] RDX: ffffc90000433bb0 RSI: 00000000ffffefff RDI: ffff888105986800 [ 287.670634] RBP: ffffc90000433da0 R08: 0000000000000000 R09: c0000000ffffefff [ 287.677771] R10: 0000000000000001 R11: ffffc90000433ba8 R12: ffff888105986800 [ 287.684907] R13: 0000000000000000 R14: fffffffffffffe00 R15: ffff888100b6b500 [ 287.692052] FS: 0000000000000000(0000) GS:ffff888277f80000(0000) knlGS:0000000000000000 [ 287.700149] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 287.705897] CR2: 0000000000000070 CR3: 000000000320a000 CR4: 0000000000350ee0 [ 287.713033] Call Trace: [ 287.715498] raid1d+0x6c/0xbbb [raid1] [ 287.719256] ? __schedule+0x1ff/0x760 [ 287.722930] ? schedule+0x3b/0xb0 [ 287.726260] ? schedule_timeout+0x1ed/0x290 [ 287.730456] ? __switch_to+0x11f/0x400 [ 287.734219] md_thread+0xe9/0x140 [md_mod] [ 287.738328] ? md_thread+0xe9/0x140 [md_mod] [ 287.742601] ? wait_woken+0x80/0x80 [ 287.746097] ? md_register_thread+0xe0/0xe0 [md_mod] [ 287.751064] kthread+0x11a/0x140 [ 287.754300] ? kthread_park+0x90/0x90 [ 287.757974] ret_from_fork+0x1f/0x30 In fact, when raid1 array run fail, we need to do md_unregister_thread() before raid1_free().

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.28%

Chance of exploitation in the next 30 days

Percentile

21%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.28% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: not stated in public data.

Ubuntu122 products
  • linuxAll versions (No fix recorded) | < 4.15.0-208.220 | < 5.4.0-144.161 | < 5.15.0-69.76
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 4.15.0-1153.166 | < 5.4.0-1097.105 | < 5.15.0-1033.37
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.4-1
Linux1 product
  • linux≥ 5bad5054ecd83c866502f0370edfc9aa55dc9aa7, < d684ceb77311410aeaf5189d321f9f564838c49a | ≥ 440c3706f1d1835d24ba5b4bbe6515e0a97e886c, < 110f14a7b2eb5b8aa9df5af2d629524f2a07d543 | ≥ f1db75622996af402deea9c018deb8e869ce7548, < 0c7c7468c3ae222e297b7dc74d6ccb69c4d0183c | ≥ 07f1a6850c5d5a65c917c3165692b5179ac4cb6b, < 19d5a0e17aba92b10d895e40ec782768cf00da23 | ≥ 07f1a6850c5d5a65c917c3165692b5179ac4cb6b, < 10d713532ffc67b13df61ed9c138a8ce0a186236 | ≥ 07f1a6850c5d5a65c917c3165692b5179ac4cb6b, < a3cc41e05e8af340a2a759b168c29fffdb9194eb | ≥ 07f1a6850c5d5a65c917c3165692b5179ac4cb6b, < 22be44212cad8be96860346882d8e694b0b437b6 | ≥ 07f1a6850c5d5a65c917c3165692b5179ac4cb6b, < d26364596db8f8b55277b2afb3952e05a4057a21 | ≥ 07f1a6850c5d5a65c917c3165692b5179ac4cb6b, < b611ad14006e5be2170d9e8e611bf49dff288911 | b8c11e01be7f7fcbda697e8cf9aa1f4ec65816f6 | 18a00f37f418838fbe2036f425a1ea04f93c473c | d6092a9624ce32491e298f6b248b6ab31b2bbc5a | ≥ 4.9.195, < 4.9.337 | ≥ 4.14.147, < 4.14.303 | ≥ 4.19.77, < 4.19.270 | ≥ 4.4.195, < 4.5 | ≥ 5.2.19, < 5.3 | ≥ 5.3.4, < 5.4 | 5.4

3 vendors · 124 products

References

12 links
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