CVE-2024-53066

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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
2026-03-11T07:51:52.593479Z
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 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/53xxx/CVE-2024-53066.json",
    "cna_assigner": "Linux"
}
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
Introduced
88034c3d88c2c48b215f2cc5eb22e564aa817f9c
Fixed
25ffd294fef81a7f3cd9528adf21560c04d98747
Fixed
bbfcd261cc068fe1cd02a4e871275074a0daa4e2
Fixed
8fc5ea9231af9122d227c9c13f5e578fca48d2e3
Fixed
9b453e8b108a5a93a6e348cf2ba4c9c138314a00
Fixed
f6b2b2b981af8e7d7c62d34143acefa4e1edfe8b
Fixed
f749cb60a01f8391c760a1d6ecd938cadacf9549
Fixed
9be0a21ae52b3b822d0eec4d14e909ab394f8a92
Fixed
dc270d7159699ad6d11decadfce9633f0f71c1db

Database specific

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