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
References
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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History
18 Mar 2025, 16:47
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Linux
Debian Debian debian Linux Linux linux Kernel |
|
| CPE | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:* |
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| References | () https://git.kernel.org/stable/c/0184747b552d6b5a14db3b7fcc3b792ce64dedd1 - Patch | |
| References | () https://git.kernel.org/stable/c/21f8cfe79f776287459343e9cfa6055af61328ea - Patch | |
| References | () https://git.kernel.org/stable/c/260fc96283c0f594de18a1b045faf6d8fb42874d - Patch | |
| References | () https://git.kernel.org/stable/c/4530b3660d396a646aad91a787b6ab37cf604b53 - Patch | |
| References | () https://git.kernel.org/stable/c/4c21fa60a6f4606f6214a38f50612b17b2f738f5 - Patch | |
| References | () https://git.kernel.org/stable/c/927794a02169778c9c2e7b25c768ab3ea8c1dc03 - Patch | |
| References | () https://git.kernel.org/stable/c/a2576ae9a35c078e488f2c573e9e6821d651fbbe - Patch | |
| References | () https://git.kernel.org/stable/c/f97e75fa4e12b0aa0224e83fcbda8853ac2adf36 - Patch | |
| References | () https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html - Mailing List | |
| References | () https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html - Mailing List | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| CWE | NVD-CWE-noinfo |
21 Nov 2024, 09:03
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
|
| References | () https://git.kernel.org/stable/c/0184747b552d6b5a14db3b7fcc3b792ce64dedd1 - | |
| References | () https://git.kernel.org/stable/c/21f8cfe79f776287459343e9cfa6055af61328ea - | |
| References | () https://git.kernel.org/stable/c/260fc96283c0f594de18a1b045faf6d8fb42874d - | |
| References | () https://git.kernel.org/stable/c/4530b3660d396a646aad91a787b6ab37cf604b53 - | |
| References | () https://git.kernel.org/stable/c/4c21fa60a6f4606f6214a38f50612b17b2f738f5 - | |
| References | () https://git.kernel.org/stable/c/927794a02169778c9c2e7b25c768ab3ea8c1dc03 - | |
| References | () https://git.kernel.org/stable/c/a2576ae9a35c078e488f2c573e9e6821d651fbbe - | |
| References | () https://git.kernel.org/stable/c/f97e75fa4e12b0aa0224e83fcbda8853ac2adf36 - |
05 Nov 2024, 10:15
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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27 Jun 2024, 13:15
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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25 Jun 2024, 22:15
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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03 Apr 2024, 17:24
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2024-04-03 17:15
Updated : 2025-03-18 16:47
NVD link : CVE-2024-26773
Mitre link : CVE-2024-26773
CVE.ORG link : CVE-2024-26773
JSON object : View
Products Affected
debian
- debian_linux
linux
- linux_kernel
CWE