CVE-2023-52994

Source
https://nvd.nist.gov/vuln/detail/CVE-2023-52994
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-52994.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2023-52994
Related
Published
2025-03-27T17:15:47Z
Modified
2025-04-15T14:32:39Z
Downstream
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

In the Linux kernel, the following vulnerability has been resolved:

acpi: Fix suspend with Xen PV

Commit f1e525009493 ("x86/boot: Skip realmode init code when running as Xen PV guest") missed one code path accessing realmodeheader, leading to dereferencing NULL when suspending the system under Xen:

[  348.284004] PM: suspend entry (deep)
[  348.289532] Filesystems sync: 0.005 seconds
[  348.291545] Freezing user space processes ... (elapsed 0.000 seconds) done.
[  348.292457] OOM killer disabled.
[  348.292462] Freezing remaining freezable tasks ... (elapsed 0.104 seconds) done.
[  348.396612] printk: Suspending console(s) (use no_console_suspend to debug)
[  348.749228] PM: suspend devices took 0.352 seconds
[  348.769713] ACPI: EC: interrupt blocked
[  348.816077] BUG: kernel NULL pointer dereference, address: 000000000000001c
[  348.816080] #PF: supervisor read access in kernel mode
[  348.816081] #PF: error_code(0x0000) - not-present page
[  348.816083] PGD 0 P4D 0
[  348.816086] Oops: 0000 [#1] PREEMPT SMP NOPTI
[  348.816089] CPU: 0 PID: 6764 Comm: systemd-sleep Not tainted 6.1.3-1.fc32.qubes.x86_64 #1
[  348.816092] Hardware name: Star Labs StarBook/StarBook, BIOS 8.01 07/03/2022
[  348.816093] RIP: e030:acpi_get_wakeup_address+0xc/0x20

Fix that by adding an optional acpi callback allowing to skip setting the wakeup address, as in the Xen PV case this will be handled by the hypervisor anyway.

References

Affected packages

Debian:12 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.1.11-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:13 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.1.11-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}