Description
In the Linux kernel, the following vulnerability has been resolved: thermal: intel: int340x: processor: Fix warning during module unload The processor_thermal driver uses pcim_device_enable() to enable a PCI device, which means the device will be automatically disabled on driver detach. Thus there is no need to call pci_disable_device() again on it. With recent PCI device resource management improvements, e.g. commit f748a07a0b64 ("PCI: Remove legacy pcim_release()"), this problem is exposed and triggers the warining below. [ 224.010735] proc_thermal_pci 0000:00:04.0: disabling already-disabled device [ 224.010747] WARNING: CPU: 8 PID: 4442 at drivers/pci/pci.c:2250 pci_disable_device+0xe5/0x100 ... [ 224.010844] Call Trace: [ 224.010845] <TASK> [ 224.010847] ? show_regs+0x6d/0x80 [ 224.010851] ? __warn+0x8c/0x140 [ 224.010854] ? pci_disable_device+0xe5/0x100 [ 224.010856] ? report_bug+0x1c9/0x1e0 [ 224.010859] ? handle_bug+0x46/0x80 [ 224.010862] ? exc_invalid_op+0x1d/0x80 [ 224.010863] ? asm_exc_invalid_op+0x1f/0x30 [ 224.010867] ? pci_disable_device+0xe5/0x100 [ 224.010869] ? pci_disable_device+0xe5/0x100 [ 224.010871] ? kfree+0x21a/0x2b0 [ 224.010873] pcim_disable_device+0x20/0x30 [ 224.010875] devm_action_release+0x16/0x20 [ 224.010878] release_nodes+0x47/0xc0 [ 224.010880] devres_release_all+0x9f/0xe0 [ 224.010883] device_unbind_cleanup+0x12/0x80 [ 224.010885] device_release_driver_internal+0x1ca/0x210 [ 224.010887] driver_detach+0x4e/0xa0 [ 224.010889] bus_remove_driver+0x6f/0xf0 [ 224.010890] driver_unregister+0x35/0x60 [ 224.010892] pci_unregister_driver+0x44/0x90 [ 224.010894] proc_thermal_pci_driver_exit+0x14/0x5f0 [processor_thermal_device_pci] ... [ 224.010921] ---[ end trace 0000000000000000 ]--- Remove the excess pci_disable_device() calls. [ rjw: Subject and changelog edits ]
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
acd65d5d1cf4a3324c8970ba74632abe069fe23e to < 8403021b6f32d68a7e3a6b8428ecaf5c153a9974affectedacd65d5d1cf4a3324c8970ba74632abe069fe23e to < b4ab78f4adeaf6c98be5d375518dd4fb666eac5eaffectedacd65d5d1cf4a3324c8970ba74632abe069fe23e to < dd64ea03375618684477f946be4f5e253f8676c2affectedacd65d5d1cf4a3324c8970ba74632abe069fe23e to < 434525a864136c928b54fd2512b4c0167c207463affectedacd65d5d1cf4a3324c8970ba74632abe069fe23e to < 99ca0b57e49fb73624eede1c4396d9e3d10ccf14affected
Linux Linux
Default version status: affected
5.14affected0 to < 5.14unaffected5.15.168 to ≤ 5.15.*unaffected6.1.113 to ≤ 6.1.*unaffected6.6.57 to ≤ 6.6.*unaffected6.11.4 to ≤ 6.11.*unaffected6.12 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/8403021b6f32d68a7e3a6b8428ecaf5c153a9974 ↗
- https://git.kernel.org/stable/c/b4ab78f4adeaf6c98be5d375518dd4fb666eac5e ↗
- https://git.kernel.org/stable/c/dd64ea03375618684477f946be4f5e253f8676c2 ↗
- https://git.kernel.org/stable/c/434525a864136c928b54fd2512b4c0167c207463 ↗
- https://git.kernel.org/stable/c/99ca0b57e49fb73624eede1c4396d9e3d10ccf14 ↗
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html ↗