CVE-2022-49610
published 2025-02-26CVE-2022-49610: In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Prevent RSB underflow before vmenter On VMX, there are some balanced returns…
PriorityP419medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.22%
13.1th percentile
In the Linux kernel, the following vulnerability has been resolved:
KVM: VMX: Prevent RSB underflow before vmenter
On VMX, there are some balanced returns between the time the guest's
SPEC_CTRL value is written, and the vmenter.
Balanced returns (matched by a preceding call) are usually ok, but it's
at least theoretically possible an NMI with a deep call stack could
empty the RSB before one of the returns.
For maximum paranoia, don't allow *any* returns (balanced or otherwise)
between the SPEC_CTRL write and the vmenter.
[ bp: Fix 32-bit build. ]
Affected
16 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.18.14-1 (bookworm) | linux 5.18.14-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | — | — |
| linux | linux | — | — |
| linux | linux | >= 3.16.57 < 3.17 | 3.17 |
| linux | linux | >= 4.4.168 < 4.5 | 4.5 |
| linux | linux | >= d28b387fb74da95d69d2615732f50cceb38e9a4d < afd743f6dde87296c6f3414706964c491bb85862 | afd743f6dde87296c6f3414706964c491bb85862 |
| linux | linux | >= d28b387fb74da95d69d2615732f50cceb38e9a4d < 07853adc29a058c5fd143c14e5ac528448a72ed9 | 07853adc29a058c5fd143c14e5ac528448a72ed9 |
| linux | linux_kernel | < 5.18.14 | 5.18.14 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.18.14-1 | 5.18.14-1 |
| linux | linux_kernel | >= 0 < 5.18.14-1 | 5.18.14-1 |
| linux | linux_kernel | >= 0 < 5.18.14-1 | 5.18.14-1 |
| msrc | cbl2_kernel_5.15.186.1-1_on_cbl_mariner_2.0 | — | — |
| msrc | cbl2_kernel_5.15.200.1-1_on_cbl_mariner_2.0 | — | — |
| msrc | cbl2_kernel_5.15.202.1-1_on_cbl_mariner_2.0 | — | — |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
vendor_msrc3.3LOW
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Red Hat
kernel: KVM: VMX: Prevent RSB underflow before vmenter
vendor_redhat·2025-02-26·CVSS 5.5
CVE-2022-49610 [MEDIUM] CWE-367 kernel: KVM: VMX: Prevent RSB underflow before vmenter
kernel: KVM: VMX: Prevent RSB underflow before vmenter
In the Linux kernel, the following vulnerability has been resolved:
KVM: VMX: Prevent RSB underflow before vmenter
On VMX, there are some balanced returns between the time the guest's
SPEC_CTRL value is written, and the vmenter.
Balanced returns (matched by a preceding call) are usually ok, but it's
at least theoretically possible an NMI with a deep call stack could
empty the RSB before one of the returns.
For maximum paranoia, don't allow *any* returns (balanced or otherwise)
between the SPEC_CTRL write and the vmenter.
[ bp: Fix 32-bit build. ]
Package: kernel (Red Hat Enterprise Linux 10) - Not affected
Package: kernel (Red Hat Enterprise Linux 6) - Out of support scope
Package: kernel (Red Hat Enterprise Linux 7) - Out of suppo
Microsoft
KVM: VMX: Prevent RSB underflow before vmenter
vendor_msrc·2025-02-11·CVSS 3.3
CVE-2022-49610 [MEDIUM] KVM: VMX: Prevent RSB underflow before vmenter
KVM: VMX: Prevent RSB underflow before vmenter
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
Linux: Linux
Customer Action Required: Yes
Debian
CVE-2022-49610: linux - In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: P...
vendor_debian·2022·CVSS 5.5
CVE-2022-49610 [MEDIUM] CVE-2022-49610: linux - In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: P...
In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Prevent RSB underflow before vmenter On VMX, there are some balanced returns between the time the guest's SPEC_CTRL value is written, and the vmenter. Balanced returns (matched by a preceding call) are usually ok, but it's at least theoretically possible an NMI with a deep call stack could empty the RSB before one of the returns. For maximum paranoia, don't allow *any* returns (balanced or otherwise) between the SPEC_CTRL write and the vmenter. [ bp: Fix 32-bit build. ]
Scope: local
bookworm: resolved (fixed in 5.18.14-1)
bullseye: open
forky: resolved (fixed in 5.18.14-1)
sid: resolved (fixed in 5.18.14-1)
trixie: resolved (fixed in 5.18.14-1)
GHSA
GHSA-4w6c-74px-57rx: In the Linux kernel, the following vulnerability has been resolved:
KVM: VMX: Prevent RSB underflow before vmenter
On VMX, there are some balanced r
ghsa_unreviewed·2025-10-23
CVE-2022-49610 [MEDIUM] GHSA-4w6c-74px-57rx: In the Linux kernel, the following vulnerability has been resolved:
KVM: VMX: Prevent RSB underflow before vmenter
On VMX, there are some balanced r
In the Linux kernel, the following vulnerability has been resolved:
KVM: VMX: Prevent RSB underflow before vmenter
On VMX, there are some balanced returns between the time the guest's
SPEC_CTRL value is written, and the vmenter.
Balanced returns (matched by a preceding call) are usually ok, but it's
at least theoretically possible an NMI with a deep call stack could
empty the RSB before one of the returns.
For maximum paranoia, don't allow *any* returns (balanced or otherwise)
between the SPEC_CTRL write and the vmenter.
[ bp: Fix 32-bit build. ]
OSV
CVE-2022-49610: In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Prevent RSB underflow before vmenter On VMX, there are some balanced ret
osv·2025-02-26·CVSS 5.5
CVE-2022-49610 [MEDIUM] CVE-2022-49610: In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Prevent RSB underflow before vmenter On VMX, there are some balanced ret
In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Prevent RSB underflow before vmenter On VMX, there are some balanced returns between the time the guest's SPEC_CTRL value is written, and the vmenter. Balanced returns (matched by a preceding call) are usually ok, but it's at least theoretically possible an NMI with a deep call stack could empty the RSB before one of the returns. For maximum paranoia, don't allow *any* returns (balanced or otherwise) between the SPEC_CTRL write and the vmenter. [ bp: Fix 32-bit build. ]
No detection rules found.
No public exploits indexed.
2025-02-26
Published