CVE-2022-49001
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-49001
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49001.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-49001
- Downstream
- Published
- 2024-10-21T20:06:15.443Z
- Modified
- 2025-11-28T10:29:53.341701Z
- Summary
- riscv: fix race when vmap stack overflow
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
riscv: fix race when vmap stack overflow
Currently, when detecting vmap stack overflow, riscv firstly switches to the so called shadow stack, then use this shadow stack to call the getoverflowstack() to get the overflow stack. However, there's a race here if two or more harts use the same shadow stack at the same time.
To solve this race, we introduce spinshadowstack atomic var, which will be swap between its own address and 0 in atomic way, when the var is set, it means the shadowstack is being used; when the var is cleared, it means the shadowstack isn't being used.
[Palmer: Add AQ to the swap, and also some comments.]
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49001.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/7e1864332fbc1b993659eab7974da9fe8bf8c128
- https://git.kernel.org/stable/c/879fabc5a95401d9bce357e4b1d24ae4a360a81f
- https://git.kernel.org/stable/c/ac00301adb19df54f2eae1efc4bad7447c0156ce
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49001.json
- https://nvd.nist.gov/vuln/detail/CVE-2022-49001
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
-
Introduced31da94c25aea835ceac00575a9fd206c5a833fedFixedac00301adb19df54f2eae1efc4bad7447c0156ceFixed879fabc5a95401d9bce357e4b1d24ae4a360a81fFixed7e1864332fbc1b993659eab7974da9fe8bf8c128
Affected versions
v5.*
v5.13
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
v5.15.11
v5.15.12
v5.15.13
v5.15.14
v5.15.15
v5.15.16
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
v5.15.9
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
v6.*
v6.0
v6.0-rc1
v6.0-rc2
v6.0-rc3
v6.0-rc4
v6.0-rc5
v6.0-rc6
v6.0-rc7
v6.0.1
v6.0.10
v6.0.11
v6.0.2
v6.0.3
v6.0.4
v6.0.5
v6.0.6
v6.0.7
v6.0.8
v6.0.9
Database specific
vanir_signatures
[
{
"signature_version": "v1",
"deprecated": false,
"id": "CVE-2022-49001-025f7e2a",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@ac00301adb19df54f2eae1efc4bad7447c0156ce",
"digest": {
"line_hashes": [
"189438437295657685950611903961053416686",
"274801965056376310915837951660848685551",
"80300010743415969679268657004821860997",
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"271000660120824427882109894256512522388",
"105731649179634276627484702522870203683"
],
"threshold": 0.9
},
"target": {
"file": "arch/riscv/kernel/traps.c"
},
"signature_type": "Line"
},
{
"signature_version": "v1",
"deprecated": false,
"id": "CVE-2022-49001-46bfc245",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@879fabc5a95401d9bce357e4b1d24ae4a360a81f",
"digest": {
"length": 504.0,
"function_hash": "261051262998256476965719214614071769477"
},
"target": {
"function": "handle_bad_stack",
"file": "arch/riscv/kernel/traps.c"
},
"signature_type": "Function"
},
{
"signature_version": "v1",
"deprecated": false,
"id": "CVE-2022-49001-85b3ff38",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@879fabc5a95401d9bce357e4b1d24ae4a360a81f",
"digest": {
"line_hashes": [
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"274801965056376310915837951660848685551",
"80300010743415969679268657004821860997",
"232094737266503657333396784105288871092",
"236617716362753625487486000900160576790",
"271000660120824427882109894256512522388",
"105731649179634276627484702522870203683"
],
"threshold": 0.9
},
"target": {
"file": "arch/riscv/kernel/traps.c"
},
"signature_type": "Line"
},
{
"signature_version": "v1",
"deprecated": false,
"id": "CVE-2022-49001-8a46fbd5",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@7e1864332fbc1b993659eab7974da9fe8bf8c128",
"digest": {
"length": 504.0,
"function_hash": "261051262998256476965719214614071769477"
},
"target": {
"function": "handle_bad_stack",
"file": "arch/riscv/kernel/traps.c"
},
"signature_type": "Function"
},
{
"signature_version": "v1",
"deprecated": false,
"id": "CVE-2022-49001-b7e9d898",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@ac00301adb19df54f2eae1efc4bad7447c0156ce",
"digest": {
"length": 504.0,
"function_hash": "261051262998256476965719214614071769477"
},
"target": {
"function": "handle_bad_stack",
"file": "arch/riscv/kernel/traps.c"
},
"signature_type": "Function"
},
{
"signature_version": "v1",
"deprecated": false,
"id": "CVE-2022-49001-f6510ac0",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@7e1864332fbc1b993659eab7974da9fe8bf8c128",
"digest": {
"line_hashes": [
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"threshold": 0.9
},
"target": {
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},
"signature_type": "Line"
}
]