CVE-2024-44992
smb/client: avoid possible NULL dereference in cifs_free_subrequest()
Severity Score
"-"
*CVSS v-
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:
smb/client: avoid possible NULL dereference in cifs_free_subrequest()
Clang static checker (scan-build) warning:
cifsglob.h:line 890, column 3
Access to field 'ops' results in a dereference of a null pointer.
Commit 519be989717c ("cifs: Add a tracepoint to track credits involved in
R/W requests") adds a check for 'rdata->server', and let clang throw this
warning about NULL dereference.
When 'rdata->credits.value != 0 && rdata->server == NULL' happens,
add_credits_and_wake_if() will call rdata->server->ops->add_credits().
This will cause NULL dereference problem. Add a check for 'rdata->server'
to avoid NULL dereference.
*Credits:
N/A
CVSS Scores
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Attack Complexity
Privileges Required
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Scope
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* Common Vulnerability Scoring System
SSVC
- Decision:Track
Exploitation
Automatable
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* Organization's Worst-case Scenario
Timeline
- 2024-08-21 CVE Reserved
- 2024-09-04 CVE Published
- 2024-09-05 EPSS Updated
- 2024-12-19 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (3)
| URL | Tag | Source |
|---|---|---|
| https://git.kernel.org/stable/c/69c3c023af25edb5433a2db824d3e7cc328f0183 | Vuln. Introduced |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://git.kernel.org/stable/c/fead60a6d5f84b472b928502a42c419253afe6c1 | 2024-08-29 | |
| https://git.kernel.org/stable/c/74c2ab6d653b4c2354df65a7f7f2df1925a40a51 | 2024-08-15 |
| 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" | >= 6.10 < 6.10.7 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.10 < 6.10.7" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.10 < 6.11 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.10 < 6.11" | en |
Affected
| ||||||