CVE-2024-43840
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-43840
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-43840.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2024-43840
- Downstream
- Related
- Published
- 2024-08-17T09:21:55Z
- Modified
- 2025-10-17T10:31:50.646131Z
- Summary
- bpf, arm64: Fix trampoline for BPF_TRAMP_F_CALL_ORIG
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
bpf, arm64: Fix trampoline for BPFTRAMPFCALLORIG
When BPFTRAMPFCALLORIG is set, the trampoline calls _bpftrampenter() and _bpftrampexit() functions, passing them the struct bpftrampimage *im pointer as an argument in R0.
The trampoline generation code uses emitaddrmovi64() to emit instructions for moving the bpftrampimage address into R0, but emitaddrmovi64() assumes the address to be in the vmalloc() space and uses only 48 bits. Because bpftrampimage is allocated using kzalloc(), its address can use more than 48-bits, in this case the trampoline will pass an invalid address to _bpftramp_enter/exit() causing a kernel crash.
Fix this by using emita64movi64() in place of emitaddrmovi64() as it can work with addresses that are greater than 48-bits.
- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/077149478497b2f00ff4fd9da2c892defa6418d8
- https://git.kernel.org/stable/c/19d3c179a37730caf600a97fed3794feac2b197b
- https://git.kernel.org/stable/c/6d218fcc707d6b2c3616b6cd24b948fd4825cfec
- https://git.kernel.org/stable/c/d9664e6ff040798a46cdc5d401064f55b8676c83
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
-
Introducedefc9909fdce00a827a37609628223cd45bf95d0bFixed077149478497b2f00ff4fd9da2c892defa6418d8
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedefc9909fdce00a827a37609628223cd45bf95d0bFixedd9664e6ff040798a46cdc5d401064f55b8676c83
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedefc9909fdce00a827a37609628223cd45bf95d0bFixed6d218fcc707d6b2c3616b6cd24b948fd4825cfec
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedefc9909fdce00a827a37609628223cd45bf95d0bFixed19d3c179a37730caf600a97fed3794feac2b197b
Affected versions
v5.*
v5.19
v5.19-rc6
v5.19-rc7
v5.19-rc8
v6.*
v6.0
v6.0-rc1
v6.0-rc2
v6.0-rc3
v6.0-rc4
v6.0-rc5
v6.0-rc6
v6.0-rc7
v6.1
v6.1-rc1
v6.1-rc2
v6.1-rc3
v6.1-rc4
v6.1-rc5
v6.1-rc6
v6.1-rc7
v6.1-rc8
v6.1.1
v6.1.10
v6.1.100
v6.1.101
v6.1.102
v6.1.103
v6.1.104
v6.1.105
v6.1.106
v6.1.107
v6.1.108
v6.1.109
v6.1.11
v6.1.110
v6.1.111
v6.1.112
v6.1.113
v6.1.114
v6.1.115
v6.1.116
v6.1.117
v6.1.118
v6.1.119
v6.1.12
v6.1.120
v6.1.121
v6.1.122
v6.1.123
v6.1.124
v6.1.125
v6.1.126
v6.1.127
v6.1.128
v6.1.129
v6.1.13
v6.1.130
v6.1.131
v6.1.132
v6.1.133
v6.1.134
v6.1.135
v6.1.136
v6.1.137
v6.1.138
v6.1.139
v6.1.14
v6.1.15
v6.1.16
v6.1.17
v6.1.18
v6.1.19
v6.1.2
v6.1.20
v6.1.21
v6.1.22
v6.1.23
v6.1.24
v6.1.25
v6.1.26
v6.1.27
v6.1.28
v6.1.29
v6.1.3
v6.1.30
v6.1.31
v6.1.32
v6.1.33
v6.1.34
v6.1.35
v6.1.36
v6.1.37
v6.1.38
v6.1.39
v6.1.4
v6.1.40
v6.1.41
v6.1.42
v6.1.43
v6.1.44
v6.1.45
v6.1.46
v6.1.47
v6.1.48
v6.1.49
v6.1.5
v6.1.50
v6.1.51
v6.1.52
v6.1.53
v6.1.54
v6.1.55
v6.1.56
v6.1.57
v6.1.58
v6.1.59
v6.1.6
v6.1.60
v6.1.61
v6.1.62
v6.1.63
v6.1.64
v6.1.65
v6.1.66
v6.1.67
v6.1.68
v6.1.69
v6.1.7
v6.1.70
v6.1.71
v6.1.72
v6.1.73
v6.1.74
v6.1.75
v6.1.76
v6.1.77
v6.1.78
v6.1.79
v6.1.8
v6.1.80
v6.1.81
v6.1.82
v6.1.83
v6.1.84
v6.1.85
v6.1.86
v6.1.87
v6.1.88
v6.1.89
v6.1.9
v6.1.90
v6.1.91
v6.1.92
v6.1.93
v6.1.94
v6.1.95
v6.1.96
v6.1.97
v6.1.98
v6.1.99
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
v6.6.44
v6.6.45
v6.6.46
v6.6.47
v6.6.48
v6.6.49
v6.6.5
v6.6.50
v6.6.51
v6.6.52
v6.6.53
v6.6.54
v6.6.55
v6.6.56
v6.6.57
v6.6.58
v6.6.59
v6.6.6
v6.6.60
v6.6.61
v6.6.62
v6.6.63
v6.6.64
v6.6.65
v6.6.66
v6.6.67
v6.6.68
v6.6.69
v6.6.7
v6.6.70
v6.6.71
v6.6.72
v6.6.73
v6.6.74
v6.6.75
v6.6.76
v6.6.77
v6.6.78
v6.6.79
v6.6.8
v6.6.80
v6.6.81
v6.6.82
v6.6.83
v6.6.84
v6.6.85
v6.6.86
v6.6.87
v6.6.88
v6.6.89
v6.6.9
v6.6.90
v6.6.91
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": {
"threshold": 0.9,
"line_hashes": [
"87734733830041605748040263978728874974",
"207004586410863497480313454517308227009",
"304117517273641319754124602887234041504",
"158164141014362989020906069429791128227",
"338001186957738937695806553374157630869",
"275223025306013203008782981438338971503",
"308916144846783854593658814393229937927",
"162414486627456809319742837841287820427"
]
},
"target": {
"file": "arch/arm64/net/bpf_jit_comp.c"
},
"signature_type": "Line",
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@19d3c179a37730caf600a97fed3794feac2b197b",
"signature_version": "v1",
"id": "CVE-2024-43840-2566b499"
},
{
"digest": {
"threshold": 0.9,
"line_hashes": [
"87734733830041605748040263978728874974",
"207004586410863497480313454517308227009",
"304117517273641319754124602887234041504",
"158164141014362989020906069429791128227",
"338001186957738937695806553374157630869",
"275223025306013203008782981438338971503",
"308916144846783854593658814393229937927",
"162414486627456809319742837841287820427"
]
},
"target": {
"file": "arch/arm64/net/bpf_jit_comp.c"
},
"signature_type": "Line",
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@6d218fcc707d6b2c3616b6cd24b948fd4825cfec",
"signature_version": "v1",
"id": "CVE-2024-43840-68d454ba"
},
{
"digest": {
"threshold": 0.9,
"line_hashes": [
"87734733830041605748040263978728874974",
"207004586410863497480313454517308227009",
"304117517273641319754124602887234041504",
"158164141014362989020906069429791128227",
"254353256818541519437110933753308447956",
"185757718472694027362158513879143685861",
"284915968111413272903468627794703725687",
"162414486627456809319742837841287820427"
]
},
"target": {
"file": "arch/arm64/net/bpf_jit_comp.c"
},
"signature_type": "Line",
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@077149478497b2f00ff4fd9da2c892defa6418d8",
"signature_version": "v1",
"id": "CVE-2024-43840-ecf372be"
},
{
"digest": {
"threshold": 0.9,
"line_hashes": [
"87734733830041605748040263978728874974",
"207004586410863497480313454517308227009",
"304117517273641319754124602887234041504",
"158164141014362989020906069429791128227",
"254353256818541519437110933753308447956",
"185757718472694027362158513879143685861",
"284915968111413272903468627794703725687",
"162414486627456809319742837841287820427"
]
},
"target": {
"file": "arch/arm64/net/bpf_jit_comp.c"
},
"signature_type": "Line",
"deprecated": false,
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@d9664e6ff040798a46cdc5d401064f55b8676c83",
"signature_version": "v1",
"id": "CVE-2024-43840-fd2f6621"
}
]