CVE-2021-45402
- Source
- https://cve.org/CVERecord?id=CVE-2021-45402
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-45402.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-45402
- Downstream
- Related
- Published
- 2022-02-11T15:15:07.687Z
- Modified
- 2026-03-15T22:42:28.342393Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
- Summary
- [none]
- Details
-
The checkaluop() function in kernel/bpf/verifier.c in the Linux kernel through v5.16-rc5 did not properly update bounds while handling the mov32 instruction, which allows local users to obtain potentially sensitive address information, aka a "pointer leak."
- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=3cf2b61eb06765e27fec6799292d9fb46d0b7e60
- https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=b1a7288dedc6caf9023f2676b4f5ed34cf0d4029
- https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=e572ff80f05c33cd0cb4860f864f5c9c044280b6
Affected packages
Git /
Database specific
unresolved_ranges
[
{
"events": [
{
"introduced": "0"
},
{
"fixed": "5.16"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "5.16-rc1"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "5.16-rc2"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "5.16-rc3"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "5.16-rc4"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "5.16-rc5"
}
]
}
]
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-45402.json"