CVE-2024-49957
ocfs2: fix null-ptr-deref when journal load failed.
Severity Score
"-"
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*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
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*KEV
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*SSVC
Descriptions
In the Linux kernel, the following vulnerability has been resolved:
ocfs2: fix null-ptr-deref when journal load failed.
During the mounting process, if journal_reset() fails because of too short
journal, then lead to jbd2_journal_load() fails with NULL j_sb_buffer.
Subsequently, ocfs2_journal_shutdown() calls
jbd2_journal_flush()->jbd2_cleanup_journal_tail()->
__jbd2_update_log_tail()->jbd2_journal_update_sb_log_tail()
->lock_buffer(journal->j_sb_buffer), resulting in a null-pointer
dereference error.
To resolve this issue, we should check the JBD2_LOADED flag to ensure the
journal was properly loaded. Additionally, use journal instead of
osb->journal directly to simplify the code.
*Credits:
N/A
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Timeline
- 2024-10-21 CVE Reserved
- 2024-10-21 CVE Published
- 2024-10-21 CVE Updated
- ---------- EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (8)
| URL | Tag | Source |
|---|---|---|
| https://git.kernel.org/stable/c/f6f50e28f0cb8d7bcdfaacc83129f005dede11b1 | Vuln. Introduced |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.32 < 5.10.227 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.32 < 5.10.227" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.32 < 5.15.168 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.32 < 5.15.168" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.32 < 6.1.113 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.32 < 6.1.113" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.32 < 6.6.55 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.32 < 6.6.55" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.32 < 6.10.14 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.32 < 6.10.14" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.32 < 6.11.3 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.32 < 6.11.3" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.32 < 6.12-rc1 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.32 < 6.12-rc1" | en |
Affected
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