CVE-2024-53066

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2024-53066
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-53066.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-53066
Downstream
Related
Published
2024-11-19T17:22:35.389Z
Modified
2026-05-15T04:12:03.597961591Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
nfs: Fix KMSAN warning in decode_getfattr_attrs()
Details

In the Linux kernel, the following vulnerability has been resolved:

nfs: Fix KMSAN warning in decodegetfattrattrs()

Fix the following KMSAN warning:

CPU: 1 UID: 0 PID: 7651 Comm: cp Tainted: G B Tainted: [B]=BAD_PAGE

Hardware name: QEMU Standard PC (Q35 + ICH9, 2009)

===================================================== BUG: KMSAN: uninit-value in decodegetfattrattrs+0x2d6d/0x2f90 decodegetfattrattrs+0x2d6d/0x2f90 decodegetfattrgeneric+0x806/0xb00 nfs4xdrdecgetattr+0x1de/0x240 rpcauthunwraprespdecode+0xab/0x100 rpcauthunwrapresp+0x95/0xc0 call_decode+0x4ff/0xb50 __rpcexecute+0x57b/0x19d0 rpcexecute+0x368/0x5e0 rpcruntask+0xcfe/0xee0 nfs4procgetattr+0x5b5/0x990 __nfsrevalidateinode+0x477/0xd00 nfs_accessgetcached+0x1021/0x1cc0 nfsdoaccess+0x9f/0xae0 nfspermission+0x1e4/0x8c0 inodepermission+0x356/0x6c0 linkpathwalk+0x958/0x1330 pathlookupat+0xce/0x6b0 filenamelookup+0x23e/0x770 vfsstatx+0xe7/0x970 vfsfstatat+0x1f2/0x2c0 __sesysnewfstatat+0x67/0x880 __x64sysnewfstatat+0xbd/0x120 x64syscall+0x1826/0x3cf0 dosyscall64+0xd0/0x1b0 entrySYSCALL64afterhwframe+0x77/0x7f

The KMSAN warning is triggered in decodegetfattrattrs(), when calling decodeattrmdsthreshold(). It appears that fattr->mdsthreshold is not initialized.

Fix the issue by initializing fattr->mdsthreshold to NULL in nfsfattrinit().

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/53xxx/CVE-2024-53066.json"
}
References

Affected packages

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
3.5.0
Fixed
4.19.324
Type
ECOSYSTEM
Events
Introduced
4.20.0
Fixed
5.4.286
Type
ECOSYSTEM
Events
Introduced
5.5.0
Fixed
5.10.230
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.172
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.117
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.61
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.11.8

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-53066.json"