CVE-2026-93269
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
ext4: fix circular lock dependency in ext4_ext_migrate
In the Linux kernel, the following vulnerability has been resolved: ext4: fix circular lock dependency in ext4_ext_migrate Move iput(tmp_inode) after ext4_writepages_up_write() to avoid a circular lock dependency between s_writepages_rwsem and sb_internal (freeze protection). The deadlock scenario: CPU0 (EXT4_IOC_MIGRATE) CPU1 (orphan cleanup during mount) ---- ---- ext4_ext_migrate() ext4_writepages_down_write() s_writepages_rwsem (write) ext4_evict_inode() sb_start_intwrite() [sb_internal] ... ext4_writepages() s_writepages_rwsem (read) [BLOCKED] iput(tmp_inode) ext4_evict_inode() sb_start_intwrite() [BLOCKED] The tmp_inode is a temporary inode with nlink=0 created solely for building the extent tree. Its eviction does not require s_writepages_rwsem protection, so deferring iput() until after releasing the rwsem is safe.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| cb85f4d23f794e24127f3e562cb3b54b0803f456 | affected | git | 452950461241dfed8b1d32e94b227db38c99c5af | Unavailable | None listed |
| cb85f4d23f794e24127f3e562cb3b54b0803f456 | affected | git | ada23457d4748d6e9c36c6f871fc29a6f558c48c | Unavailable | None listed |
| cb85f4d23f794e24127f3e562cb3b54b0803f456 | affected | git | e4223231b6860141813637a6413c2371ae4d6fa8 | Unavailable | None listed |
| cb85f4d23f794e24127f3e562cb3b54b0803f456 | affected | git | 32f7ab52875ec7f800ca67e7176e5743a84baddf | Unavailable | None listed |
| cb85f4d23f794e24127f3e562cb3b54b0803f456 | affected | git | a897682793eba5de51ee6f3152760374afa629cf | Unavailable | None listed |
| eb799e163dc2bc1ea0a4820b66f79d32a5e907df | affected | git | Unavailable | Unavailable | None listed |
| bcc1eab71a67c46b9e24544ac7923f44444174ce | affected | git | Unavailable | Unavailable | None listed |
| 8cf20fb73e73a4c4df0328b5297842c5ef34fdd9 | affected | git | Unavailable | Unavailable | None listed |
| e5d25003d059649e18a249635ed5ca7a7b1de5ad | affected | git | Unavailable | Unavailable | None listed |
| 69f8a7991fd93c49096ddd11574db3e7df238b7b | affected | git | Unavailable | Unavailable | None listed |
| 4.9.215 | affected | semver | 4.10 | Unavailable | None listed |
| 4.14.172 | affected | semver | 4.15 | Unavailable | None listed |
| 4.19.107 | affected | semver | 4.20 | Unavailable | None listed |
| 5.4.23 | affected | semver | 5.5 | Unavailable | None listed |
| 5.5.7 | affected | semver | 5.6 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.6 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.6 | Unavailable | None listed |
| 6.6.157 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.110 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.52 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.6 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |