CVE-2026-92494
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 buffer_head leak in ext4_init_orphan_info
In the Linux kernel, the following vulnerability has been resolved: ext4: fix buffer_head leak in ext4_init_orphan_info ext4_init_orphan_info() reads orphan file blocks with ext4_bread() and stores the returned buffer_head in oi->of_binfo[i].ob_bh. If ext4_bread() succeeds but the orphan block magic or checksum validation fails, the function jumps to out_free. However, the old out_free loop starts releasing buffers from i - 1, so the current buffer_head at index i is skipped. This leaks the buffer_head reference obtained by ext4_bread() on the bad magic and bad checksum error paths. Fix this by tracking the number of successfully read buffer_heads and releasing exactly those buffer_heads on the error path.
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) |
|---|---|---|---|---|---|
| 02f310fcf47fa9311d6ba2946a8d19e7d7d11f37 | affected | git | a9a6ec1298f9bc134b2c5db27d25bb10603b7113 | Unavailable | None listed |
| 02f310fcf47fa9311d6ba2946a8d19e7d7d11f37 | affected | git | 35fc83c65faf7949f5701bb34b20f822560a7718 | Unavailable | None listed |
| 02f310fcf47fa9311d6ba2946a8d19e7d7d11f37 | affected | git | 74637f7fef030e5fb2e835b7dfeb05efdc48e0fe | Unavailable | None listed |
| 02f310fcf47fa9311d6ba2946a8d19e7d7d11f37 | affected | git | 6ec53ccab0d691b3c73e03d930343ca45987e88d | Unavailable | None listed |
| 02f310fcf47fa9311d6ba2946a8d19e7d7d11f37 | affected | git | 1399f102d8a1855c1a38506057306ec79d0787d9 | Unavailable | None listed |
| 02f310fcf47fa9311d6ba2946a8d19e7d7d11f37 | affected | git | e1e342d9a561c016b8531ec1f4dcefaad9d64954 | Unavailable | None listed |
| 02f310fcf47fa9311d6ba2946a8d19e7d7d11f37 | affected | git | 05704335803b69c1bfa8637b7ada942bf2ee8a41 | 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) |
|---|---|---|---|---|---|
| 5.15 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.15 | Unavailable | None listed |
| 5.15.221 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.188 | unaffected | semver | Unavailable | 6.1.* | 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 |