CVE-2024-41070
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-41070
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-41070.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2024-41070
- Downstream
- Related
- Published
- 2024-07-29T14:57:30Z
- Modified
- 2025-11-04T06:54:47.048347Z
- Summary
- KVM: PPC: Book3S HV: Prevent UAF in kvm_spapr_tce_attach_iommu_group()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
KVM: PPC: Book3S HV: Prevent UAF in kvmspaprtceattachiommu_group()
Al reported a possible use-after-free (UAF) in kvmspaprtceattachiommu_group().
It looks up
sttfrom tablefd, but then continues to use it after doing fdput() on the returned fd. After the fdput() the tablefd is free to be closed by another thread. The close calls kvmspaprtcerelease() and then releasespaprtcetable() (via call_rcu()) which freesstt.Although there are calls to rcureadlock() in kvmspaprtceattachiommu_group() they are not sufficient to prevent the UAF, because
sttis used outside the locked regions.With an artifcial delay after the fdput() and a userspace program which triggers the race, KASAN detects the UAF:
BUG: KASAN: slab-use-after-free in kvmspaprtceattachiommugroup+0x298/0x720 [kvm] Read of size 4 at addr c000200027552c30 by task kvm-vfio/2505 CPU: 54 PID: 2505 Comm: kvm-vfio Not tainted 6.10.0-rc3-next-20240612-dirty #1 Hardware name: 8335-GTH POWER9 0x4e1202 opal:skiboot-v6.5.3-35-g1851b2a06 PowerNV Call Trace: dumpstacklvl+0xb4/0x108 (unreliable) printreport+0x2b4/0x6ec kasanreport+0x118/0x2b0 _asanload4+0xb8/0xd0 kvmspaprtceattachiommugroup+0x298/0x720 [kvm] kvmvfiosetattr+0x524/0xac0 [kvm] kvmdeviceioctl+0x144/0x240 [kvm] sysioctl+0x62c/0x1810 systemcallexception+0x190/0x440 systemcallvectoredcommon+0x15c/0x2ec ... Freed by task 0: ... kfree+0xec/0x3e0 releasespaprtcetable+0xd4/0x11c [kvm] rcucore+0x568/0x16a0 handlesoftirqs+0x23c/0x920 dosoftirqownstack+0x6c/0x90 dosoftirqownstack+0x58/0x90 _irqexitrcu+0x218/0x2d0 irqexit+0x30/0x80 archlocalirqrestore+0x128/0x230 archlocalirqenable+0x1c/0x30 cpuidleenterstate+0x134/0x5cc cpuidleenter+0x6c/0xb0 callcpuidle+0x7c/0x100 doidle+0x394/0x410 cpustartupentry+0x60/0x70 startsecondary+0x3fc/0x410 startsecondaryprolog+0x10/0x14
Fix it by delaying the fdput() until
sttis no longer in use, which is effectively the entire function. To keep the patch minimal add a call to fdput() at each of the existing return paths. Future work can convert the function to goto or __cleanup style cleanup.With the fix in place the test case no longer triggers the UAF.
- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/4cdf6926f443c84f680213c7aafbe6f91a5fcbc0
- https://git.kernel.org/stable/c/5f856023971f97fff74cfaf21b48ec320147b50a
- https://git.kernel.org/stable/c/82c7a4cf14aa866f8f7f09e662b02eddc49ee0bf
- https://git.kernel.org/stable/c/9975f93c760a32453d7639cf6fcf3f73b4e71ffe
- https://git.kernel.org/stable/c/a986fa57fd81a1430e00b3c6cf8a325d6f894a63
- https://git.kernel.org/stable/c/b26c8c85463ef27a522d24fcd05651f0bb039e47
- https://git.kernel.org/stable/c/be847bb20c809de8ac124431b556f244400b0491
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
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
-
Introduced121f80ba68f1a5779a36d7b3247206e60e0a7418Fixedbe847bb20c809de8ac124431b556f244400b0491
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced121f80ba68f1a5779a36d7b3247206e60e0a7418Fixed4cdf6926f443c84f680213c7aafbe6f91a5fcbc0
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced121f80ba68f1a5779a36d7b3247206e60e0a7418Fixedb26c8c85463ef27a522d24fcd05651f0bb039e47
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced121f80ba68f1a5779a36d7b3247206e60e0a7418Fixed5f856023971f97fff74cfaf21b48ec320147b50a
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced121f80ba68f1a5779a36d7b3247206e60e0a7418Fixed82c7a4cf14aa866f8f7f09e662b02eddc49ee0bf
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced121f80ba68f1a5779a36d7b3247206e60e0a7418Fixed9975f93c760a32453d7639cf6fcf3f73b4e71ffe
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced121f80ba68f1a5779a36d7b3247206e60e0a7418Fixeda986fa57fd81a1430e00b3c6cf8a325d6f894a63
Affected versions
v4.*
v4.11
v4.11-rc4
v4.11-rc5
v4.11-rc6
v4.11-rc7
v4.11-rc8
v4.12
v4.12-rc1
v4.12-rc2
v4.12-rc3
v4.12-rc4
v4.12-rc5
v4.12-rc6
v4.12-rc7
v4.13
v4.13-rc1
v4.13-rc2
v4.13-rc3
v4.13-rc4
v4.13-rc5
v4.13-rc6
v4.13-rc7
v4.14
v4.14-rc1
v4.14-rc2
v4.14-rc3
v4.14-rc4
v4.14-rc5
v4.14-rc6
v4.14-rc7
v4.14-rc8
v4.15
v4.15-rc1
v4.15-rc2
v4.15-rc3
v4.15-rc4
v4.15-rc5
v4.15-rc6
v4.15-rc7
v4.15-rc8
v4.15-rc9
v4.16
v4.16-rc1
v4.16-rc2
v4.16-rc3
v4.16-rc4
v4.16-rc5
v4.16-rc6
v4.16-rc7
v4.17
v4.17-rc1
v4.17-rc2
v4.17-rc3
v4.17-rc4
v4.17-rc5
v4.17-rc6
v4.17-rc7
v4.18
v4.18-rc1
v4.18-rc2
v4.18-rc3
v4.18-rc4
v4.18-rc5
v4.18-rc6
v4.18-rc7
v4.18-rc8
v4.19
v4.19-rc1
v4.19-rc2
v4.19-rc3
v4.19-rc4
v4.19-rc5
v4.19-rc6
v4.19-rc7
v4.19-rc8
v4.20
v4.20-rc1
v4.20-rc2
v4.20-rc3
v4.20-rc4
v4.20-rc5
v4.20-rc6
v4.20-rc7
v5.*
v5.0
v5.0-rc1
v5.0-rc2
v5.0-rc3
v5.0-rc4
v5.0-rc5
v5.0-rc6
v5.0-rc7
v5.0-rc8
v5.1
v5.1-rc1
v5.1-rc2
v5.1-rc3
v5.1-rc4
v5.1-rc5
v5.1-rc6
v5.1-rc7
v5.10
v5.10-rc1
v5.10-rc2
v5.10-rc3
v5.10-rc4
v5.10-rc5
v5.10-rc6
v5.10-rc7
v5.10.1
v5.10.10
v5.10.100
v5.10.101
v5.10.102
v5.10.103
v5.10.104
v5.10.105
v5.10.106
v5.10.107
v5.10.108
v5.10.109
v5.10.11
v5.10.110
v5.10.111
v5.10.112
v5.10.113
v5.10.114
v5.10.115
v5.10.116
v5.10.117
v5.10.118
v5.10.119
v5.10.12
v5.10.120
v5.10.121
v5.10.122
v5.10.123
v5.10.124
v5.10.125
v5.10.126
v5.10.127
v5.10.128
v5.10.129
v5.10.13
v5.10.130
v5.10.131
v5.10.132
v5.10.133
v5.10.134
v5.10.135
v5.10.136
v5.10.137
v5.10.138
v5.10.139
v5.10.14
v5.10.140
v5.10.141
v5.10.142
v5.10.143
v5.10.144
v5.10.145
v5.10.146
v5.10.147
v5.10.148
v5.10.149
v5.10.15
v5.10.150
v5.10.151
v5.10.152
v5.10.153
v5.10.154
v5.10.155
v5.10.156
v5.10.157
v5.10.158
v5.10.159
v5.10.16
v5.10.160
v5.10.161
v5.10.162
v5.10.163
v5.10.164
v5.10.165
v5.10.166
v5.10.167
v5.10.168
v5.10.169
v5.10.17
v5.10.170
v5.10.171
v5.10.172
v5.10.173
v5.10.174
v5.10.175
v5.10.176
v5.10.177
v5.10.178
v5.10.179
v5.10.18
v5.10.180
v5.10.181
v5.10.182
v5.10.183
v5.10.184
v5.10.185
v5.10.186
v5.10.187
v5.10.188
v5.10.189
v5.10.19
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
v5.10.2
v5.10.20
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
v5.10.21
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
v5.10.22
v5.10.220
v5.10.221
v5.10.222
v5.10.23
v5.10.24
v5.10.25
v5.10.26
v5.10.27
v5.10.28
v5.10.29
v5.10.3
v5.10.30
v5.10.31
v5.10.32
v5.10.33
v5.10.34
v5.10.35
v5.10.36
v5.10.37
v5.10.38
v5.10.39
v5.10.4
v5.10.40
v5.10.41
v5.10.42
v5.10.43
v5.10.44
v5.10.45
v5.10.46
v5.10.47
v5.10.48
v5.10.49
v5.10.5
v5.10.50
v5.10.51
v5.10.52
v5.10.53
v5.10.54
v5.10.55
v5.10.56
v5.10.57
v5.10.58
v5.10.59
v5.10.6
v5.10.60
v5.10.61
v5.10.62
v5.10.63
v5.10.64
v5.10.65
v5.10.66
v5.10.67
v5.10.68
v5.10.69
v5.10.7
v5.10.70
v5.10.71
v5.10.72
v5.10.73
v5.10.74
v5.10.75
v5.10.76
v5.10.77
v5.10.78
v5.10.79
v5.10.8
v5.10.80
v5.10.81
v5.10.82
v5.10.83
v5.10.84
v5.10.85
v5.10.86
v5.10.87
v5.10.88
v5.10.89
v5.10.9
v5.10.90
v5.10.91
v5.10.92
v5.10.93
v5.10.94
v5.10.95
v5.10.96
v5.10.97
v5.10.98
v5.10.99
v5.11
v5.11-rc1
v5.11-rc2
v5.11-rc3
v5.11-rc4
v5.11-rc5
v5.11-rc6
v5.11-rc7
v5.12
v5.12-rc1
v5.12-rc1-dontuse
v5.12-rc2
v5.12-rc3
v5.12-rc4
v5.12-rc5
v5.12-rc6
v5.12-rc7
v5.12-rc8
v5.13
v5.13-rc1
v5.13-rc2
v5.13-rc3
v5.13-rc4
v5.13-rc5
v5.13-rc6
v5.13-rc7
v5.14
v5.14-rc1
v5.14-rc2
v5.14-rc3
v5.14-rc4
v5.14-rc5
v5.14-rc6
v5.14-rc7
v5.15
v5.15-rc1
v5.15-rc2
v5.15-rc3
v5.15-rc4
v5.15-rc5
v5.15-rc6
v5.15-rc7
v5.15.1
v5.15.10
v5.15.100
v5.15.101
v5.15.102
v5.15.103
v5.15.104
v5.15.105
v5.15.106
v5.15.107
v5.15.108
v5.15.109
v5.15.11
v5.15.110
v5.15.111
v5.15.112
v5.15.113
v5.15.114
v5.15.115
v5.15.116
v5.15.117
v5.15.118
v5.15.119
v5.15.12
v5.15.120
v5.15.121
v5.15.122
v5.15.123
v5.15.124
v5.15.125
v5.15.126
v5.15.127
v5.15.128
v5.15.129
v5.15.13
v5.15.130
v5.15.131
v5.15.132
v5.15.133
v5.15.134
v5.15.135
v5.15.136
v5.15.137
v5.15.138
v5.15.139
v5.15.14
v5.15.140
v5.15.141
v5.15.142
v5.15.143
v5.15.144
v5.15.145
v5.15.146
v5.15.147
v5.15.148
v5.15.149
v5.15.15
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
v5.15.16
v5.15.160
v5.15.161
v5.15.162
v5.15.163
v5.15.17
v5.15.18
v5.15.19
v5.15.2
v5.15.20
v5.15.21
v5.15.22
v5.15.23
v5.15.24
v5.15.25
v5.15.26
v5.15.27
v5.15.28
v5.15.29
v5.15.3
v5.15.30
v5.15.31
v5.15.32
v5.15.33
v5.15.34
v5.15.35
v5.15.36
v5.15.37
v5.15.38
v5.15.39
v5.15.4
v5.15.40
v5.15.41
v5.15.42
v5.15.43
v5.15.44
v5.15.45
v5.15.46
v5.15.47
v5.15.48
v5.15.49
v5.15.5
v5.15.50
v5.15.51
v5.15.52
v5.15.53
v5.15.54
v5.15.55
v5.15.56
v5.15.57
v5.15.58
v5.15.59
v5.15.6
v5.15.60
v5.15.61
v5.15.62
v5.15.63
v5.15.64
v5.15.65
v5.15.66
v5.15.67
v5.15.68
v5.15.69
v5.15.7
v5.15.70
v5.15.71
v5.15.72
v5.15.73
v5.15.74
v5.15.75
v5.15.76
v5.15.77
v5.15.78
v5.15.79
v5.15.8
v5.15.80
v5.15.81
v5.15.82
v5.15.83
v5.15.84
v5.15.85
v5.15.86
v5.15.87
v5.15.88
v5.15.89
v5.15.9
v5.15.90
v5.15.91
v5.15.92
v5.15.93
v5.15.94
v5.15.95
v5.15.96
v5.15.97
v5.15.98
v5.15.99
v5.16
v5.16-rc1
v5.16-rc2
v5.16-rc3
v5.16-rc4
v5.16-rc5
v5.16-rc6
v5.16-rc7
v5.16-rc8
v5.17
v5.17-rc1
v5.17-rc2
v5.17-rc3
v5.17-rc4
v5.17-rc5
v5.17-rc6
v5.17-rc7
v5.17-rc8
v5.18
v5.18-rc1
v5.18-rc2
v5.18-rc3
v5.18-rc4
v5.18-rc5
v5.18-rc6
v5.18-rc7
v5.19
v5.19-rc1
v5.19-rc2
v5.19-rc3
v5.19-rc4
v5.19-rc5
v5.19-rc6
v5.19-rc7
v5.19-rc8
v5.2
v5.2-rc1
v5.2-rc2
v5.2-rc3
v5.2-rc4
v5.2-rc5
v5.2-rc6
v5.2-rc7
v5.3
v5.3-rc1
v5.3-rc2
v5.3-rc3
v5.3-rc4
v5.3-rc5
v5.3-rc6
v5.3-rc7
v5.3-rc8
v5.4
v5.4-rc1
v5.4-rc2
v5.4-rc3
v5.4-rc4
v5.4-rc5
v5.4-rc6
v5.4-rc7
v5.4-rc8
v5.4.1
v5.4.10
v5.4.100
v5.4.101
v5.4.102
v5.4.103
v5.4.104
v5.4.105
v5.4.106
v5.4.107
v5.4.108
v5.4.109
v5.4.11
v5.4.110
v5.4.111
v5.4.112
v5.4.113
v5.4.114
v5.4.115
v5.4.116
v5.4.117
v5.4.118
v5.4.119
v5.4.12
v5.4.120
v5.4.121
v5.4.122
v5.4.123
v5.4.124
v5.4.125
v5.4.126
v5.4.127
v5.4.128
v5.4.129
v5.4.13
v5.4.130
v5.4.131
v5.4.132
v5.4.133
v5.4.134
v5.4.135
v5.4.136
v5.4.137
v5.4.138
v5.4.139
v5.4.14
v5.4.140
v5.4.141
v5.4.142
v5.4.143
v5.4.144
v5.4.145
v5.4.146
v5.4.147
v5.4.148
v5.4.149
v5.4.15
v5.4.150
v5.4.151
v5.4.152
v5.4.153
v5.4.154
v5.4.155
v5.4.156
v5.4.157
v5.4.158
v5.4.159
v5.4.16
v5.4.160
v5.4.161
v5.4.162
v5.4.163
v5.4.164
v5.4.165
v5.4.166
v5.4.167
v5.4.168
v5.4.169
v5.4.17
v5.4.170
v5.4.171
v5.4.172
v5.4.173
v5.4.174
v5.4.175
v5.4.176
v5.4.177
v5.4.178
v5.4.179
v5.4.18
v5.4.180
v5.4.181
v5.4.182
v5.4.183
v5.4.184
v5.4.185
v5.4.186
v5.4.187
v5.4.188
v5.4.189
v5.4.19
v5.4.190
v5.4.191
v5.4.192
v5.4.193
v5.4.194
v5.4.195
v5.4.196
v5.4.197
v5.4.198
v5.4.199
v5.4.2
v5.4.20
v5.4.200
v5.4.201
v5.4.202
v5.4.203
v5.4.204
v5.4.205
v5.4.206
v5.4.207
v5.4.208
v5.4.209
v5.4.21
v5.4.210
v5.4.211
v5.4.212
v5.4.213
v5.4.214
v5.4.215
v5.4.216
v5.4.217
v5.4.218
v5.4.219
v5.4.22
v5.4.220
v5.4.221
v5.4.222
v5.4.223
v5.4.224
v5.4.225
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Database specific
vanir_signatures
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{
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{
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{
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{
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{
"id": "CVE-2024-41070-a5405f57",
"target": {
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"file": "arch/powerpc/kvm/book3s_64_vio.c"
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{
"id": "CVE-2024-41070-bcc96e81",
"target": {
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"file": "arch/powerpc/kvm/book3s_64_vio.c"
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{
"id": "CVE-2024-41070-cc9d3bb7",
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{
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"target": {
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]
Linux / Kernel
Package
- Name
- Kernel
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced4.12.0Fixed5.4.281
- Type
- ECOSYSTEM
- Events
-
Introduced5.5.0Fixed5.10.223
- Type
- ECOSYSTEM
- Events
-
Introduced5.11.0Fixed5.15.164
- Type
- ECOSYSTEM
- Events
-
Introduced5.16.0Fixed6.1.101
- Type
- ECOSYSTEM
- Events
-
Introduced6.2.0Fixed6.6.42
- Type
- ECOSYSTEM
- Events
-
Introduced6.7.0Fixed6.9.11