CVE-2024-44992
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-44992
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-44992.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2024-44992
- Downstream
- Published
- 2024-09-04T19:54:38.878Z
- Modified
- 2025-11-20T05:29:35.070955Z
- Summary
- smb/client: avoid possible NULL dereference in cifs_free_subrequest()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
smb/client: avoid possible NULL dereference in cifsfreesubrequest()
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, addcreditsandwakeif() will call rdata->server->ops->add_credits(). This will cause NULL dereference problem. Add a check for 'rdata->server' to avoid NULL dereference.
- References
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced69c3c023af25edb5433a2db824d3e7cc328f0183Fixedfead60a6d5f84b472b928502a42c419253afe6c1
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced69c3c023af25edb5433a2db824d3e7cc328f0183Fixed74c2ab6d653b4c2354df65a7f7f2df1925a40a51
Affected versions
v6.*
v6.10
v6.10-rc1
v6.10-rc2
v6.10-rc3
v6.10-rc4
v6.10-rc5
v6.10-rc6
v6.10-rc7
v6.10.1
v6.10.2
v6.10.3
v6.10.4
v6.10.5
v6.10.6
v6.11-rc1
v6.11-rc2
v6.11-rc3
v6.9
v6.9-rc7
Database specific
vanir_signatures
[
{
"id": "CVE-2024-44992-692f410f",
"target": {
"function": "cifs_free_subrequest",
"file": "fs/smb/client/file.c"
},
"signature_version": "v1",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@74c2ab6d653b4c2354df65a7f7f2df1925a40a51",
"deprecated": false,
"digest": {
"length": 758.0,
"function_hash": "327923084494819602764430229020864269878"
},
"signature_type": "Function"
},
{
"id": "CVE-2024-44992-fad857bf",
"target": {
"file": "fs/smb/client/file.c"
},
"signature_version": "v1",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@74c2ab6d653b4c2354df65a7f7f2df1925a40a51",
"deprecated": false,
"digest": {
"line_hashes": [
"11793361931831803054497175683894309260",
"147461184903494942411041827551017694293",
"39513141264738356852839829641704256171",
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"154114316091212383243831677095375156811",
"280900818401148264607582313919648083317",
"238432381548282227583983413736673491789",
"226077417725757739138406285620603640824",
"185647114424019024535557160688592252048"
],
"threshold": 0.9
},
"signature_type": "Line"
}
]