CVE-2024-26773
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2024
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
ext4: avoid allocating blocks from corrupted group in ext4_mb_try_best_found()
In the Linux kernel, the following vulnerability has been resolved: ext4: avoid allocating blocks from corrupted group in ext4_mb_try_best_found() Determine if the group block bitmap is corrupted before using ac_b_ex in ext4_mb_try_best_found() to avoid allocating blocks from a group with a corrupted block bitmap in the following concurrency and making the situation worse. ext4_mb_regular_allocator ext4_lock_group(sb, group) ext4_mb_good_group // check if the group bbitmap is corrupted ext4_mb_complex_scan_group // Scan group gets ac_b_ex but doesn't use it ext4_unlock_group(sb, group) ext4_mark_group_bitmap_corrupted(group) // The block bitmap was corrupted during // the group unlock gap. ext4_mb_try_best_found ext4_lock_group(ac->ac_sb, group) ext4_mb_use_best_found mb_mark_used // Allocating blocks in block bitmap corrupted group
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) |
|---|---|---|---|---|---|
| 163a203ddb36c36d4a1c942aececda0cc8d06aa7 | affected | git | 21f8cfe79f776287459343e9cfa6055af61328ea | Unavailable | None listed |
| 163a203ddb36c36d4a1c942aececda0cc8d06aa7 | affected | git | 260fc96283c0f594de18a1b045faf6d8fb42874d | Unavailable | None listed |
| 163a203ddb36c36d4a1c942aececda0cc8d06aa7 | affected | git | 927794a02169778c9c2e7b25c768ab3ea8c1dc03 | Unavailable | None listed |
| 163a203ddb36c36d4a1c942aececda0cc8d06aa7 | affected | git | 4c21fa60a6f4606f6214a38f50612b17b2f738f5 | Unavailable | None listed |
| 163a203ddb36c36d4a1c942aececda0cc8d06aa7 | affected | git | f97e75fa4e12b0aa0224e83fcbda8853ac2adf36 | Unavailable | None listed |
| 163a203ddb36c36d4a1c942aececda0cc8d06aa7 | affected | git | 0184747b552d6b5a14db3b7fcc3b792ce64dedd1 | Unavailable | None listed |
| 163a203ddb36c36d4a1c942aececda0cc8d06aa7 | affected | git | a2576ae9a35c078e488f2c573e9e6821d651fbbe | Unavailable | None listed |
| 163a203ddb36c36d4a1c942aececda0cc8d06aa7 | affected | git | 4530b3660d396a646aad91a787b6ab37cf604b53 | 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) |
|---|---|---|---|---|---|
| 3.12 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 3.12 | Unavailable | None listed |
| 4.19.308 | unaffected | semver | Unavailable | 4.19.* | None listed |
| 5.4.270 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.211 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.150 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.80 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.19 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.7.7 | unaffected | semver | Unavailable | 6.7.* | None listed |
| 6.8 | unaffected | original_commit_for_fix | Unavailable | * | None listed |