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Message-ID: <2025070332-CVE-2025-38137-d4bf@gregkh> Date: Thu, 3 Jul 2025 10:35:54 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-cve-announce@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...nel.org> Subject: CVE-2025-38137: PCI/pwrctrl: Cancel outstanding rescan work when unregistering From: Greg Kroah-Hartman <gregkh@...nel.org> Description =========== In the Linux kernel, the following vulnerability has been resolved: PCI/pwrctrl: Cancel outstanding rescan work when unregistering It's possible to trigger use-after-free here by: (a) forcing rescan_work_func() to take a long time and (b) utilizing a pwrctrl driver that may be unloaded for some reason Cancel outstanding work to ensure it is finished before we allow our data structures to be cleaned up. [bhelgaas: tidy commit log] The Linux kernel CVE team has assigned CVE-2025-38137 to this issue. Affected and fixed versions =========================== Issue introduced in 6.11 with commit 8f62819aaace77dd85037ae766eb767f8c4417ce and fixed in 6.15.3 with commit b3ad6d23fec23fbef382ce9ea640c37446593cf5 Issue introduced in 6.11 with commit 8f62819aaace77dd85037ae766eb767f8c4417ce and fixed in 6.16-rc1 with commit 8b926f237743f020518162c62b93cb7107a2b5eb Please see https://www.kernel.org for a full list of currently supported kernel versions by the kernel community. Unaffected versions might change over time as fixes are backported to older supported kernel versions. The official CVE entry at https://cve.org/CVERecord/?id=CVE-2025-38137 will be updated if fixes are backported, please check that for the most up to date information about this issue. Affected files ============== The file(s) affected by this issue are: drivers/pci/pwrctrl/core.c Mitigation ========== The Linux kernel CVE team recommends that you update to the latest stable kernel version for this, and many other bugfixes. Individual changes are never tested alone, but rather are part of a larger kernel release. Cherry-picking individual commits is not recommended or supported by the Linux kernel community at all. If however, updating to the latest release is impossible, the individual changes to resolve this issue can be found at these commits: https://git.kernel.org/stable/c/b3ad6d23fec23fbef382ce9ea640c37446593cf5 https://git.kernel.org/stable/c/8b926f237743f020518162c62b93cb7107a2b5eb
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