CVE-2026-46285mtd: docg3: fix use-after-free in docg3_release()
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: mtd: docg3: fix use-after-free in docg3_release() In docg3_release(), the docg3 pointer is obtained from cascade->floors[0]->priv before the loop that calls doc_release_device() on each floor. doc_release_device() frees the docg3 struct via kfree(docg3) at line 1881. After the loop, docg3->cascade->bch dereferences the already-freed pointer. Fix this by accessing cascade->bch directly, which is equivalent since docg3->cascade points back to the same cascade struct, and is already available as a local variable. This also removes the now-unused docg3 local variable.
- CVSS
- 7.8 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Analyzed
- Record last updated
- Jun 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from c8ae3f744ddca0da164bcacee42d1d4b6fe7027d before 8408655ec8344511667b61d8257dc59c80ee3391; from c8ae3f744ddca0da164bcacee42d1d4b6fe7027d before f5d2ed4ed47d3906e2495a3537a48b127f497a17; from c8ae3f744ddca0da164bcacee42d1d4b6fe7027d before 2bf706fe7831b319f23a85b9728f961cfed40c3e; from c8ae3f744ddca0da164bcacee42d1d4b6fe7027d before d26f8c361f751c188b7ebaf8189aa0258968fd98; from c8ae3f744ddca0da164bcacee42d1d4b6fe7027d before 16f6588a3b7a2a20d10ad9b766be74c60ba347cc; from c8ae3f744ddca0da164bcacee42d1d4b6fe7027d before d89044889ecd11b0c2f86663597246e9bdd25679; from c8ae3f744ddca0da164bcacee42d1d4b6fe7027d before d49628d63d4e6bbc8a1621afb88e5fc901611bee; from c8ae3f744ddca0da164bcacee42d1d4b6fe7027d before ca19808bc6fac7e29420d8508df569b346b3e339 | CNA record |
linux linux_kernel linux:linux_kernel | from 5.8 before 5.10.258; from 5.11 before 5.15.209; from 5.16 before 6.1.175; from 6.2 before 6.6.140; from 6.7 before 6.12.86; from 6.13 before 6.18.27; from 6.19 before 7.0.4 | NVD |
References
- https://git.kernel.org/stable/c/8408655ec8344511667b61d8257dc59c80ee3391patch
- https://git.kernel.org/stable/c/f5d2ed4ed47d3906e2495a3537a48b127f497a17patch
- https://git.kernel.org/stable/c/2bf706fe7831b319f23a85b9728f961cfed40c3epatch
- https://git.kernel.org/stable/c/d26f8c361f751c188b7ebaf8189aa0258968fd98patch
- https://git.kernel.org/stable/c/16f6588a3b7a2a20d10ad9b766be74c60ba347ccpatch
- https://git.kernel.org/stable/c/d89044889ecd11b0c2f86663597246e9bdd25679patch
- https://git.kernel.org/stable/c/d49628d63d4e6bbc8a1621afb88e5fc901611beepatch
- https://git.kernel.org/stable/c/ca19808bc6fac7e29420d8508df569b346b3e339patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.