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]
Product status
e03327122e2c8e6ae4565ef5b3d3cbe4364546a1 (git) before 705be96504779e4a333ea042b4779ea941f0ace9
e03327122e2c8e6ae4565ef5b3d3cbe4364546a1 (git) before e516e187bf32d8decc7c7d0025ae4857cad13c0e
e03327122e2c8e6ae4565ef5b3d3cbe4364546a1 (git) before 54c9f299ad7d7c4be5d271ed12d01a59e95b8907
e03327122e2c8e6ae4565ef5b3d3cbe4364546a1 (git) before 9d5118b107b1a2353ed0dff24404aee2e6b7ca0a
e03327122e2c8e6ae4565ef5b3d3cbe4364546a1 (git) before 5a4b7181213268c9b07bef8800905528435db44a
e03327122e2c8e6ae4565ef5b3d3cbe4364546a1 (git) before 0557e70e2aeba8647bf5a950820b67cfb86533db
e03327122e2c8e6ae4565ef5b3d3cbe4364546a1 (git) before 770407f6173f4f39f4e2c1b54422b79ce6c98bdb
e03327122e2c8e6ae4565ef5b3d3cbe4364546a1 (git) before f6cb7828c8e17520d4f5afb416515d3fae1af9a9
4.19
Any version before 4.19
5.4.293 (semver)
5.10.237 (semver)
5.15.181 (semver)
6.1.135 (semver)
6.6.88 (semver)
6.12.25 (semver)
6.14.3 (semver)
6.15 (original_commit_for_fix)
References
lists.debian.org/debian-lts-announce/2025/05/msg00045.html
lists.debian.org/debian-lts-announce/2025/05/msg00030.html
git.kernel.org/...c/705be96504779e4a333ea042b4779ea941f0ace9
git.kernel.org/...c/e516e187bf32d8decc7c7d0025ae4857cad13c0e
git.kernel.org/...c/54c9f299ad7d7c4be5d271ed12d01a59e95b8907
git.kernel.org/...c/9d5118b107b1a2353ed0dff24404aee2e6b7ca0a
git.kernel.org/...c/5a4b7181213268c9b07bef8800905528435db44a
git.kernel.org/...c/0557e70e2aeba8647bf5a950820b67cfb86533db
git.kernel.org/...c/770407f6173f4f39f4e2c1b54422b79ce6c98bdb
git.kernel.org/...c/f6cb7828c8e17520d4f5afb416515d3fae1af9a9