CVE-2022-49154
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-49154
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49154.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-49154
- Downstream
- Related
- Published
- 2025-02-26T01:55:19Z
- Modified
- 2025-10-15T19:44:03.246127Z
- Summary
- KVM: SVM: fix panic on out-of-bounds guest IRQ
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
KVM: SVM: fix panic on out-of-bounds guest IRQ
As guestirq is coming from KVMIRQFD API call, it may trigger crash in svmupdatepi_irte() due to out-of-bounds:
crash> bt PID: 22218 TASK: ffff951a6ad74980 CPU: 73 COMMAND: "vcpu8" #0 [ffffb1ba6707fa40] machinekexec at ffffffff8565b397 #1 [ffffb1ba6707fa90] _crashkexec at ffffffff85788a6d #2 [ffffb1ba6707fb58] crashkexec at ffffffff8578995d #3 [ffffb1ba6707fb70] oopsend at ffffffff85623c0d #4 [ffffb1ba6707fb90] nocontext at ffffffff856692c9 #5 [ffffb1ba6707fbf8] excpagefault at ffffffff85f95b51 #6 [ffffb1ba6707fc50] asmexcpagefault at ffffffff86000ace [exception RIP: svmupdatepiirte+227] RIP: ffffffffc0761b53 RSP: ffffb1ba6707fd08 RFLAGS: 00010086 RAX: ffffb1ba6707fd78 RBX: ffffb1ba66d91000 RCX: 0000000000000001 RDX: 00003c803f63f1c0 RSI: 000000000000019a RDI: ffffb1ba66db2ab8 RBP: 000000000000019a R8: 0000000000000040 R9: ffff94ca41b82200 R10: ffffffffffffffcf R11: 0000000000000001 R12: 0000000000000001 R13: 0000000000000001 R14: ffffffffffffffcf R15: 000000000000005f ORIGRAX: ffffffffffffffff CS: 0010 SS: 0018 #7 [ffffb1ba6707fdb8] kvmirqroutingupdate at ffffffffc09f19a1 [kvm] #8 [ffffb1ba6707fde0] kvmsetirqrouting at ffffffffc09f2133 [kvm] #9 [ffffb1ba6707fe18] kvmvmioctl at ffffffffc09ef544 [kvm] RIP: 00007f143c36488b RSP: 00007f143a4e04b8 RFLAGS: 00000246 RAX: ffffffffffffffda RBX: 00007f05780041d0 RCX: 00007f143c36488b RDX: 00007f05780041d0 RSI: 000000004008ae6a RDI: 0000000000000020 RBP: 00000000000004e8 R8: 0000000000000008 R9: 00007f05780041e0 R10: 00007f0578004560 R11: 0000000000000246 R12: 00000000000004e0 R13: 000000000000001a R14: 00007f1424001c60 R15: 00007f0578003bc0 ORIGRAX: 0000000000000010 CS: 0033 SS: 002b
Vmx have been fix this in commit 3a8b0677fc61 (KVM: VMX: Do not BUG() on out-of-bounds guest IRQ), so we can just copy source from that to fix this.
- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/0fb470eb48892e131d10aa3be6915239e65758f3
- https://git.kernel.org/stable/c/3fa2d747960521a646fc1aad7aea82e95e139a68
- https://git.kernel.org/stable/c/a6ffdebfb6a9c2ffeed902b544b96fe67498210e
- https://git.kernel.org/stable/c/a80ced6ea514000d34bf1239d47553de0d1ee89e
- https://git.kernel.org/stable/c/e4d153d53d9648513481eb4ef8c212e7f1f8173d
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
-
Introduced411b44ba80ab0023383fe3f377e903cb0cb7d8bbFixed0fb470eb48892e131d10aa3be6915239e65758f3
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced411b44ba80ab0023383fe3f377e903cb0cb7d8bbFixed3fa2d747960521a646fc1aad7aea82e95e139a68
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced411b44ba80ab0023383fe3f377e903cb0cb7d8bbFixede4d153d53d9648513481eb4ef8c212e7f1f8173d
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced411b44ba80ab0023383fe3f377e903cb0cb7d8bbFixeda6ffdebfb6a9c2ffeed902b544b96fe67498210e
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced411b44ba80ab0023383fe3f377e903cb0cb7d8bbFixeda80ced6ea514000d34bf1239d47553de0d1ee89e