CVE-2024-42315
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-42315
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-42315.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2024-42315
- Downstream
- Related
- Published
- 2024-08-17T09:09:23Z
- Modified
- 2025-10-15T14:20:06.927952Z
- Summary
- exfat: fix potential deadlock on __exfat_get_dentry_set
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
exfat: fix potential deadlock on _exfatgetdentryset
When accessing a file with more entries than ESMAXENTRYNUM, the bh-array is allocated in _exfatgetentryset. The problem is that the bh-array is allocated with GFPKERNEL. It does not make sense. In the following cases, a deadlock for sbi->s_lock between the two processes may occur.
CPU0 CPU1 ---- ----kswapd balancepgdat lock(fsreclaim) exfatiterate lock(&sbi->slock) exfatreaddir exfatgetuninamefromextentry exfatgetdentryset _exfatgetdentryset kmallocarray ... lock(fsreclaim) ... evict exfatevictinode lock(&sbi->slock)
To fix this, let's allocate bh-array with GFP_NOFS.
- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/1d1970493c289e3f44b9ec847ed26a5dbdf56a62
- https://git.kernel.org/stable/c/632fb232b6bbf8277edcbe9ecd4b4d98ecb122eb
- https://git.kernel.org/stable/c/89fc548767a2155231128cb98726d6d2ea1256c9
- https://git.kernel.org/stable/c/a7ac198f8dba791e3144c4da48a5a9b95773ee4b
- https://git.kernel.org/stable/c/c052f775ee6ccacd3c97e4cf41a2a657e63d4259
- https://git.kernel.org/stable/c/cd1c7858641384191ff7033fb1fc65dfcd559c6f
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
-
Introducedbd3bdb9e0d656f760b11d0c638d35d7f7068144dFixed632fb232b6bbf8277edcbe9ecd4b4d98ecb122eb
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced92dcd7d6c6068bf4fd35a6f64d606e27d634807eFixedc052f775ee6ccacd3c97e4cf41a2a657e63d4259
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedd8fe01ad2d8ab33aaf8f2efad9e8f1dae11c4b0cFixedcd1c7858641384191ff7033fb1fc65dfcd559c6f
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduceda3ff29a95fde16906304455aa8c0bd84eb770258Fixeda7ac198f8dba791e3144c4da48a5a9b95773ee4b
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduceda3ff29a95fde16906304455aa8c0bd84eb770258Fixed1d1970493c289e3f44b9ec847ed26a5dbdf56a62
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduceda3ff29a95fde16906304455aa8c0bd84eb770258Fixed89fc548767a2155231128cb98726d6d2ea1256c9
Affected versions
v5.*
v5.10.190
v5.10.191
v5.10.192
v5.10.193
v5.10.194
v5.10.195
v5.10.196
v5.10.197
v5.10.198
v5.10.199
v5.10.200
v5.10.201
v5.10.202
v5.10.203
v5.10.204
v5.10.205
v5.10.206
v5.10.207
v5.10.208
v5.10.209
v5.10.210
v5.10.211
v5.10.212
v5.10.213
v5.10.214
v5.10.215
v5.10.216
v5.10.217
v5.10.218
v5.10.219
v5.10.220
v5.10.221
v5.10.222
v5.10.223
v5.10.224
v5.10.225
v5.10.226
v5.10.227
v5.10.228
v5.10.229
v5.10.230
v5.10.231
v5.15.150
v5.15.151
v5.15.152
v5.15.153
v5.15.154
v5.15.155
v5.15.156
v5.15.157
v5.15.158
v5.15.159
v5.15.160
v5.15.161
v5.15.162
v5.15.163
v5.15.164
v5.15.165
v5.15.166
v5.15.167
v5.15.168
v5.15.169
v5.15.170
v5.15.171
v5.15.172
v5.15.173
v5.15.174
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
v6.2
v6.2-rc1
v6.2-rc2
v6.2-rc3
v6.2-rc4
v6.2-rc5
v6.2-rc6
v6.2-rc7
v6.2-rc8
v6.3
v6.3-rc1
v6.3-rc2
v6.3-rc3
v6.3-rc4
v6.3-rc5
v6.3-rc6
v6.3-rc7
v6.4
v6.4-rc1
v6.4-rc2
v6.4-rc3
v6.4-rc4
v6.4-rc5
v6.4-rc6
v6.4-rc7
v6.5
v6.5-rc1
v6.5-rc2
v6.5-rc3
v6.5-rc4
v6.5-rc5
v6.5-rc6
v6.5-rc7
v6.6
v6.6-rc1
v6.6-rc2
v6.6-rc3
v6.6-rc4
v6.6-rc5
v6.6-rc6
v6.6-rc7
v6.6.1
v6.6.10
v6.6.11
v6.6.12
v6.6.13
v6.6.14
v6.6.15
v6.6.16
v6.6.17
v6.6.18
v6.6.19
v6.6.2
v6.6.20
v6.6.21
v6.6.22
v6.6.23
v6.6.24
v6.6.25
v6.6.26
v6.6.27
v6.6.28
v6.6.29
v6.6.3
v6.6.30
v6.6.31
v6.6.32
v6.6.33
v6.6.34
v6.6.35
v6.6.36
v6.6.37
v6.6.38
v6.6.39
v6.6.4
v6.6.40
v6.6.41
v6.6.42
v6.6.43
v6.6.5
v6.6.6
v6.6.7
v6.6.8
v6.6.9
v6.7
v6.7-rc1
v6.7-rc2
v6.7-rc3
v6.7-rc4
v6.7-rc5
v6.7-rc6
v6.7-rc7
v6.7-rc8
v6.8
v6.8-rc1
v6.8-rc2
v6.8-rc3
v6.8-rc4
v6.8-rc5
v6.8-rc6
v6.8-rc7
v6.9
v6.9-rc1
v6.9-rc2
v6.9-rc3
v6.9-rc4
v6.9-rc5
v6.9-rc6
v6.9-rc7
Database specific
{
"vanir_signatures": [
{
"digest": {
"line_hashes": [
"324728347340300075220158138091294301624",
"65363913030259145238411681096164731779",
"109794227318602971069021117993179397986",
"286643922036781056355499354229617786776"
],
"threshold": 0.9
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@a7ac198f8dba791e3144c4da48a5a9b95773ee4b",
"target": {
"file": "fs/exfat/dir.c"
},
"id": "CVE-2024-42315-2de9007e",
"signature_version": "v1",
"deprecated": false,
"signature_type": "Line"
},
{
"digest": {
"function_hash": "201627415105757038009401434267392365809",
"length": 1763.0
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@a7ac198f8dba791e3144c4da48a5a9b95773ee4b",
"target": {
"function": "exfat_get_dentry_set",
"file": "fs/exfat/dir.c"
},
"id": "CVE-2024-42315-51bbdfa9",
"signature_version": "v1",
"deprecated": false,
"signature_type": "Function"
},
{
"digest": {
"line_hashes": [
"324728347340300075220158138091294301624",
"65363913030259145238411681096164731779",
"109794227318602971069021117993179397986",
"286643922036781056355499354229617786776"
],
"threshold": 0.9
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@89fc548767a2155231128cb98726d6d2ea1256c9",
"target": {
"file": "fs/exfat/dir.c"
},
"id": "CVE-2024-42315-6368fb5f",
"signature_version": "v1",
"deprecated": false,
"signature_type": "Line"
},
{
"digest": {
"function_hash": "312950726758801594496999853219023322772",
"length": 1600.0
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@89fc548767a2155231128cb98726d6d2ea1256c9",
"target": {
"function": "__exfat_get_dentry_set",
"file": "fs/exfat/dir.c"
},
"id": "CVE-2024-42315-7b6f23e5",
"signature_version": "v1",
"deprecated": false,
"signature_type": "Function"
},
{
"digest": {
"line_hashes": [
"324728347340300075220158138091294301624",
"65363913030259145238411681096164731779",
"109794227318602971069021117993179397986",
"66124880207932969646279158787366430653"
],
"threshold": 0.9
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@cd1c7858641384191ff7033fb1fc65dfcd559c6f",
"target": {
"file": "fs/exfat/dir.c"
},
"id": "CVE-2024-42315-9718bb46",
"signature_version": "v1",
"deprecated": false,
"signature_type": "Line"
},
{
"digest": {
"function_hash": "118396812635157371956782322780695149231",
"length": 1874.0
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@632fb232b6bbf8277edcbe9ecd4b4d98ecb122eb",
"target": {
"function": "exfat_get_dentry_set",
"file": "fs/exfat/dir.c"
},
"id": "CVE-2024-42315-ab38d896",
"signature_version": "v1",
"deprecated": false,
"signature_type": "Function"
},
{
"digest": {
"function_hash": "118396812635157371956782322780695149231",
"length": 1874.0
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@cd1c7858641384191ff7033fb1fc65dfcd559c6f",
"target": {
"function": "exfat_get_dentry_set",
"file": "fs/exfat/dir.c"
},
"id": "CVE-2024-42315-ab93df61",
"signature_version": "v1",
"deprecated": false,
"signature_type": "Function"
},
{
"digest": {
"line_hashes": [
"324728347340300075220158138091294301624",
"65363913030259145238411681096164731779",
"109794227318602971069021117993179397986",
"66124880207932969646279158787366430653"
],
"threshold": 0.9
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@632fb232b6bbf8277edcbe9ecd4b4d98ecb122eb",
"target": {
"file": "fs/exfat/dir.c"
},
"id": "CVE-2024-42315-aeb115e8",
"signature_version": "v1",
"deprecated": false,
"signature_type": "Line"
},
{
"digest": {
"line_hashes": [
"324728347340300075220158138091294301624",
"65363913030259145238411681096164731779",
"109794227318602971069021117993179397986",
"66124880207932969646279158787366430653"
],
"threshold": 0.9
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@c052f775ee6ccacd3c97e4cf41a2a657e63d4259",
"target": {
"file": "fs/exfat/dir.c"
},
"id": "CVE-2024-42315-b602d408",
"signature_version": "v1",
"deprecated": false,
"signature_type": "Line"
},
{
"digest": {
"function_hash": "118396812635157371956782322780695149231",
"length": 1874.0
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@c052f775ee6ccacd3c97e4cf41a2a657e63d4259",
"target": {
"function": "exfat_get_dentry_set",
"file": "fs/exfat/dir.c"
},
"id": "CVE-2024-42315-ba4e92a5",
"signature_version": "v1",
"deprecated": false,
"signature_type": "Function"
}
]
}
Linux / Kernel
Package
- Name
- Kernel