NFSv4: Prevent NULL-pointer dereference in nfs42_complete_copies()
In the Linux kernel, the following vulnerability has been resolved: NFSv4: Prevent NULL-pointer dereference in nfs42_complete_copies() On the node of an NFS client, some files saved in the mountpoint of the NFS server were copied to another location of the same NFS server. Accidentally, the nfs42_complete_copies() got a NULL-pointer dereference crash with the following syslog: [232064.838881] NFSv4: state recovery failed for open file nfs/pvc-12b5200d-cd0f-46a3-b9f0-af8f4fe0ef64.qcow2, error = -116 [232064.839360] NFSv4: state recovery failed for open file nfs/pvc-12b5200d-cd0f-46a3-b9f0-af8f4fe0ef64.qcow2, error = -116 [232066.588183] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000058 [232066.588586] Mem abort info: [232066.588701] ESR = 0x0000000096000007 [232066.588862] EC = 0x25: DABT (current EL), IL = 32 bits [232066.589084] SET = 0, FnV = 0 [232066.589216] EA = 0, S1PTW = 0 [232066.589340] FSC = 0x07: level 3 translation fault [232066.589559] Data abort info: [232066.589683] ISV = 0, ISS = 0x00000007 [232066.589842] CM = 0, WnR = 0 [232066.589967] user pgtable: 64k pages, 48-bit VAs, pgdp=00002000956ff400 [232066.590231] [0000000000000058] pgd=08001100ae100003, p4d=08001100ae100003, pud=08001100ae100003, pmd=08001100b3c00003, pte=0000000000000000 [232066.590757] Internal error: Oops: 96000007 [#1] SMP [232066.590958] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace fscache netfs ocfs2_dlmfs ocfs2_stack_
CVE-2024-50046
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2024-50046
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "0e65a32c8a569db363048e17a708b1a0913adbef",
"lessThan": "f892165c564e3aab272948dbb556cc20e290c55a",
"versionType": "git"
},
{
"status": "affected",
"version": "0e65a32c8a569db363048e17a708b1a0913adbef",
"lessThan": "584c019baedddec3fd634053e8fb2d8836108d38",
"versionType": "git"
},
{
"status": "affected",
"version": "0e65a32c8a569db363048e17a708b1a0913adbef",
"lessThan": "632344b9efa064ca737bfcdaaaced59fd5f18ae9",
"versionType": "git"
},
{
"status": "affected",
"version": "0e65a32c8a569db363048e17a708b1a0913adbef",
"lessThan": "fca41e5fa4914d12b2136c25f9dad69520b52683",
"versionType": "git"
},
{
"status": "affected",
"version": "0e65a32c8a569db363048e17a708b1a0913adbef",
"lessThan": "ef9189bb15dcbe7ed3f3515aaa6fc8bf7483960d",
"versionType": "git"
},
{
"status": "affected",
"version": "0e65a32c8a569db363048e17a708b1a0913adbef",
"lessThan": "a848c29e3486189aaabd5663bc11aea50c5bd144",
"versionType": "git"
}
],
"programFiles": [
"fs/nfs/client.c",
"fs/nfs/nfs42proc.c",
"fs/nfs/nfs4state.c",
"include/linux/nfs_fs_sb.h"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.5"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.5",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.227",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.168",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.113",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.57",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.11.4",
"versionType": "semver",
"lessThanOrEqual": "6.11.*"
},
{
"status": "unaffected",
"version": "6.12",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/nfs/client.c",
"fs/nfs/nfs42proc.c",
"fs/nfs/nfs4state.c",
"include/linux/nfs_fs_sb.h"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2024-50046
Source reference:
/cveMetadata/cveId
Publisher severity
critical
Source reference: /containers/cna/metrics
- Event
- #26780 · Revision 1
- Added to Heist Feed
- Publisher date