7.8

CVE-2026-46285: mtd: docg3: fix use-after-free in docg3_release()

Analyzed
AliasesUBUNTU-CVE-2026-46285DEBIAN-CVE-2026-46285
Published 08-06-2026Last modified 14-06-2026

Vulnerability summary

CVE-2026-46285 is a high (CVSS 7.8) Use After Free vulnerability in linux. EPSS estimates a 0.13% chance of exploitation in the next 30 days, higher than 2.2% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.13%
0%100%
Low · -0.04 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 45 · Related 45
OPENSUSE-SU-2026:11014-1OPENSUSE-SU-2026:21555-1SUSE-SU-2026:23066-1SUSE-SU-2026:23068-1SUSE-SU-2026:23193-1SUSE-SU-2026:23194-1

Timeline

  1. 08-06-2026
    PublishedVulnerability first disclosed.
  2. 14-06-2026
    Last modifiedVulnerability information updated.

Description

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 metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.13%

Chance of exploitation in the next 30 days

Percentile

2%

Versus all other CVEs

30-day change

Decrease -0.04 pp

From 0.17% 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

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu147 products
  • linux< 5.15.0-186.196 | < 6.8.0-136.136 | All versions (No fix recorded) | < 7.0.0-27.27
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1112.119 | < 6.8.0-1061.64 | All versions (No fix recorded) | < 7.0.0-1008.8
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ c8ae3f744ddca0da164bcacee42d1d4b6fe7027d, < 8408655ec8344511667b61d8257dc59c80ee3391 | ≥ c8ae3f744ddca0da164bcacee42d1d4b6fe7027d, < f5d2ed4ed47d3906e2495a3537a48b127f497a17 | ≥ c8ae3f744ddca0da164bcacee42d1d4b6fe7027d, < 2bf706fe7831b319f23a85b9728f961cfed40c3e | ≥ c8ae3f744ddca0da164bcacee42d1d4b6fe7027d, < d26f8c361f751c188b7ebaf8189aa0258968fd98 | ≥ c8ae3f744ddca0da164bcacee42d1d4b6fe7027d, < 16f6588a3b7a2a20d10ad9b766be74c60ba347cc | ≥ c8ae3f744ddca0da164bcacee42d1d4b6fe7027d, < d89044889ecd11b0c2f86663597246e9bdd25679 | ≥ c8ae3f744ddca0da164bcacee42d1d4b6fe7027d, < d49628d63d4e6bbc8a1621afb88e5fc901611bee | ≥ c8ae3f744ddca0da164bcacee42d1d4b6fe7027d, < ca19808bc6fac7e29420d8508df569b346b3e339 | 5.8
  • linux_kernel≥ 5.8, < 5.10.258 | ≥ 5.11, < 5.15.209 | ≥ 5.16, < 6.1.175 | ≥ 6.2, < 6.6.140 | ≥ 6.7, < 6.12.86 | ≥ 6.13, < 6.18.27 | ≥ 6.19, < 7.0.4
Debian1 product
  • linux< 6.1.176-1 | < 6.12.86-1 | < 7.0.4-1

3 vendors · 150 products

References

44 links
Show all 44 references