CVE-2024-41020
filelock: Fix fcntl/close race recovery compat path
Severity Score
6.7
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
Track
*SSVC
Descriptions
In the Linux kernel, the following vulnerability has been resolved:
filelock: Fix fcntl/close race recovery compat path
When I wrote commit 3cad1bc01041 ("filelock: Remove locks reliably when
fcntl/close race is detected"), I missed that there are two copies of the
code I was patching: The normal version, and the version for 64-bit offsets
on 32-bit kernels.
Thanks to Greg KH for stumbling over this while doing the stable
backport...
Apply exactly the same fix to the compat path for 32-bit kernels.
An LSM can prevent the fcntl/close race cleanup path in fcntl_setlk() from working, leading to use-after-free read in lock_get_status() when reading /proc/locks.
*Credits:
N/A
CVSS Scores
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* Common Vulnerability Scoring System
SSVC
- Decision:Track
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Timeline
- 2024-07-12 CVE Reserved
- 2024-07-29 CVE Published
- 2024-07-30 EPSS Updated
- 2024-11-05 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-667: Improper Locking
CAPEC
References (12)
URL | Tag | Source |
---|---|---|
https://git.kernel.org/stable/c/c293621bbf678a3d85e3ed721c3921c8a670610d | Vuln. Introduced |
URL | Date | SRC |
---|
URL | Date | SRC |
---|---|---|
https://access.redhat.com/security/cve/CVE-2024-41020 | 2024-11-12 | |
https://bugzilla.redhat.com/show_bug.cgi?id=2300363 | 2024-11-12 |
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" | >= 2.6.13 < 4.19.319 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.13 < 4.19.319" | en |
Affected
| ||||||
Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.13 < 5.4.281 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.13 < 5.4.281" | en |
Affected
| ||||||
Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.13 < 5.10.223 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.13 < 5.10.223" | en |
Affected
| ||||||
Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.13 < 5.15.164 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.13 < 5.15.164" | en |
Affected
| ||||||
Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.13 < 6.1.102 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.13 < 6.1.102" | en |
Affected
| ||||||
Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.13 < 6.6.43 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.13 < 6.6.43" | en |
Affected
| ||||||
Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.13 < 6.9.12 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.13 < 6.9.12" | en |
Affected
| ||||||
Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.13 < 6.10.2 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.13 < 6.10.2" | en |
Affected
| ||||||
Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.13 < 6.11 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.13 < 6.11" | en |
Affected
|