Description
In the Linux kernel, the following vulnerability has been resolved:
misc: pci_endpoint_test: Avoid issue of interrupts remaining after request_irq error
After devm_request_irq() fails with error in pci_endpoint_test_request_irq(), the pci_endpoint_test_free_irq_vectors() is called assuming that all IRQs have been released.
However, some requested IRQs remain unreleased, so there are still /proc/irq/* entries remaining, and this results in WARN() with the following message:
remove_proc_entry: removing non-empty directory 'irq/30', leaking at least 'pci-endpoint-test.0' WARNING: CPU: 0 PID: 202 at fs/proc/generic.c:719 remove_proc_entry +0x190/0x19c
To solve this issue, set the number of remaining IRQs to test->num_irqs, and release IRQs in advance by calling pci_endpoint_test_release_irq().
[kwilczynski: commit log]
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HAffected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= e03327122e2c8e6ae4565ef5b3d3cbe4364546a1, < 705be96504779e4a333ea042b4779ea941f0ace9; >= e03327122e2c8e6ae4565ef5b3d3cbe4364546a1, < e516e187bf32d8decc7c7d0025ae4857cad13c0e; >= e03327122e2c8e6ae4565ef5b3d3cbe4364546a1, < 54c9f299ad7d7c4be5d271ed12d01a59e95b8907; >= e03327122e2c8e6ae4565ef5b3d3cbe4364546a1, < 9d5118b107b1a2353ed0dff24404aee2e6b7ca0a; >= e03327122e2c8e6ae4565ef5b3d3cbe4364546a1, < 5a4b7181213268c9b07bef8800905528435db44a; >= e03327122e2c8e6ae4565ef5b3d3cbe4364546a1, < 0557e70e2aeba8647bf5a950820b67cfb86533db; >= e03327122e2c8e6ae4565ef5b3d3cbe4364546a1, < 770407f6173f4f39f4e2c1b54422b79ce6c98bdb; >= e03327122e2c8e6ae4565ef5b3d3cbe4364546a1, < f6cb7828c8e17520d4f5afb416515d3fae1af9a9 |
| Linux | Linux | 4.19 |
References
- https://git.kernel.org/stable/c/0557e70e2aeba8647bf5a950820b67cfb86533dbPatch
- https://git.kernel.org/stable/c/54c9f299ad7d7c4be5d271ed12d01a59e95b8907Patch
- https://git.kernel.org/stable/c/5a4b7181213268c9b07bef8800905528435db44aPatch
- https://git.kernel.org/stable/c/705be96504779e4a333ea042b4779ea941f0ace9Patch
- https://git.kernel.org/stable/c/770407f6173f4f39f4e2c1b54422b79ce6c98bdbPatch
- https://git.kernel.org/stable/c/9d5118b107b1a2353ed0dff24404aee2e6b7ca0aPatch
- https://git.kernel.org/stable/c/e516e187bf32d8decc7c7d0025ae4857cad13c0ePatch
- https://git.kernel.org/stable/c/f6cb7828c8e17520d4f5afb416515d3fae1af9a9Patch
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.htmlMailing List, Third Party Advisory
Timeline
- Published
- May 1, 2025
- Last modified
- Jun 17, 2026
- NVD status
- Analyzed