PT-2025-49080 · Linux+3 · Linux Kernel+3

Published

2025-12-04

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Updated

2026-05-07

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CVE-2025-40250

None

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Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description The mlx5 irq alloc() function in the Linux kernel could inadvertently free the entire rmap, leading to a crash when request irq() fails due to exhausted IRQ vectors. This issue occurs when both fwctl and rds configurations are enabled. The fix modifies the cleanup process to remove only the specific IRQ mapping that was just added, preventing the removal of other valid mappings and ensuring precise cleanup of the failed IRQ allocation's associated glue object. The error manifests as a general protection fault during IRQ allocation.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Related Identifiers

AZL-71417
CVE-2025-40250
MGASA-2026-0017
MGASA-2026-0018
OESA-2026-1303
OESA-2026-1304
OESA-2026-1305
OPENSUSE-SU-2026:20145-1
SUSE-SU-2026:0278-1
SUSE-SU-2026:0281-1
SUSE-SU-2026:0315-1
SUSE-SU-2026:20207-1
SUSE-SU-2026:20220-1
SUSE-SU-2026:20228-1
SUSE-SU-2026:20477-1
SUSE-SU-2026:20498-1
SUSE-SU-2026:20845-1
SUSE-SU-2026:20876-1
USN-8094-1
USN-8094-2
USN-8094-3
USN-8094-4
USN-8094-5
USN-8095-1
USN-8095-2
USN-8095-3
USN-8095-4
USN-8095-5
USN-8100-1
USN-8125-1
USN-8126-1
USN-8152-1
USN-8165-1
USN-8261-1

Affected Products

Debian
Linuxmint
Linux Kernel
Ubuntu