CVE-2025-38445md/raid1: Fix stack memory use after return in raid1_reshape
- 7.1HighCVSS base score
- 0.20%Exploitation in 30 daysEPSS · top 90% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: md/raid1: Fix stack memory use after return in raid1_reshape In the raid1_reshape function, newpool is allocated on the stack and assigned to conf->r1bio_pool. This results in conf->r1bio_pool.wait.head pointing to a stack address. Accessing this address later can lead to a kernel panic. Example access path: raid1_reshape() { // newpool is on the stack mempool_t newpool, oldpool; // initialize newpool.wait.head to stack address mempool_init(&newpool, ...); conf->r1bio_pool = newpool; } raid1_read_request() or raid1_write_request() { alloc_r1bio() { mempool_alloc() { // if pool->alloc fails remove_element() { --pool->curr_nr; } } } } mempool_free() { if (pool->curr_nr < pool->min_nr) { // pool->wait.head is a stack address // wake_up() will try to access this invalid address // which leads to a kernel panic return; wake_up(&pool->wait); } } Fix: reinit conf->r1bio_pool.wait after assigning newpool.
Timeline
ID reserved
By Linux
- 3 months later
· 3 months later
Published
- 16 months later
· 16 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | High7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.20% · top 90% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.1.
Affected products
- affected afeee514ce7f4cab605beedd03be71ebaf0c5fc8 – < d8a6853d00fbaa810765c8ed2f452a5832273968
- affected afeee514ce7f4cab605beedd03be71ebaf0c5fc8 – < 12b00ec99624f8da8c325f2dd6e807df26df0025
- affected afeee514ce7f4cab605beedd03be71ebaf0c5fc8 – < 48da050b4f54ed639b66278d0ae6f4107b2c4e2d
- affected afeee514ce7f4cab605beedd03be71ebaf0c5fc8 – < 5f35e48b76655e45522df338876dfef88dafcc71
- affected afeee514ce7f4cab605beedd03be71ebaf0c5fc8 – < df5894014a92ff0196dbc212a7764e97366fd2b7
- affected afeee514ce7f4cab605beedd03be71ebaf0c5fc8 – < 776e6186dc9ecbdb8a1b706e989166c8a99bbf64
- affected afeee514ce7f4cab605beedd03be71ebaf0c5fc8 – < 61fd5e93006cf82ec8ee5c115ab5cf4bbd104bdb
- affected afeee514ce7f4cab605beedd03be71ebaf0c5fc8 – < d67ed2ccd2d1dcfda9292c0ea8697a9d0f2f0d98
- affected 4.18
- unaffected < 4.18
- unaffected 5.4.296 – ≤ 5.4.*
- unaffected 5.10.240 – ≤ 5.10.*
- unaffected 5.15.189 – ≤ 5.15.*
- unaffected 6.1.146 – ≤ 6.1.*
- unaffected 6.6.99 – ≤ 6.6.*
- unaffected 6.12.39 – ≤ 6.12.*
- unaffected 6.15.7 – ≤ 6.15.*
- unaffected 6.16 – ≤ *
References
References10
- https://git.kernel.org/stable/c/d8a6853d00fbaa810765c8ed2f452a5832273968 (opens in a new tab)
- https://git.kernel.org/stable/c/12b00ec99624f8da8c325f2dd6e807df26df0025 (opens in a new tab)
- https://git.kernel.org/stable/c/48da050b4f54ed639b66278d0ae6f4107b2c4e2d (opens in a new tab)
- https://git.kernel.org/stable/c/5f35e48b76655e45522df338876dfef88dafcc71 (opens in a new tab)
- https://git.kernel.org/stable/c/df5894014a92ff0196dbc212a7764e97366fd2b7 (opens in a new tab)
- https://git.kernel.org/stable/c/776e6186dc9ecbdb8a1b706e989166c8a99bbf64 (opens in a new tab)
- https://git.kernel.org/stable/c/61fd5e93006cf82ec8ee5c115ab5cf4bbd104bdb (opens in a new tab)
- https://git.kernel.org/stable/c/d67ed2ccd2d1dcfda9292c0ea8697a9d0f2f0d98 (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-22696 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2025-38445)Record last updated .