cve-2022-48660
Vulnerability from cvelistv5
Published
2024-04-28 13:01
Modified
2024-12-19 08:05
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: gpiolib: cdev: Set lineevent_state::irq after IRQ register successfully When running gpio test on nxp-ls1028 platform with below command gpiomon --num-events=3 --rising-edge gpiochip1 25 There will be a warning trace as below: Call trace: free_irq+0x204/0x360 lineevent_free+0x64/0x70 gpio_ioctl+0x598/0x6a0 __arm64_sys_ioctl+0xb4/0x100 invoke_syscall+0x5c/0x130 ...... el0t_64_sync+0x1a0/0x1a4 The reason of this issue is that calling request_threaded_irq() function failed, and then lineevent_free() is invoked to release the resource. Since the lineevent_state::irq was already set, so the subsequent invocation of free_irq() would trigger the above warning call trace. To fix this issue, set the lineevent_state::irq after the IRQ register successfully.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/657803b918e097e47d99d1489da83a603c36bcddPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/69bef19d6b9700e96285f4b4e28691cda3dcd0d1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/97da736cd11ae73bdf2f5e21e24446b8349e0168Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b1489043d3b9004dd8d5a0357b08b5f0e6691c43Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/657803b918e097e47d99d1489da83a603c36bcddPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/69bef19d6b9700e96285f4b4e28691cda3dcd0d1Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/97da736cd11ae73bdf2f5e21e24446b8349e0168Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b1489043d3b9004dd8d5a0357b08b5f0e6691c43Patch
Impacted products
Vendor Product Version
Linux Linux Version: 5.9
Show details on NVD website

To clipboard 

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Since the lineevent_state::irq was already set, so\\nthe subsequent invocation of free_irq() would trigger the above\\nwarning call trace. To fix this issue, set the lineevent_state::irq\\nafter the IRQ register successfully.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: gpiolib: cdev: configure lineevent_state::irq despu\u00e9s del registro IRQ con \u00e9xito Al ejecutar la prueba gpio en la plataforma nxp-ls1028 con el siguiente comando gpiomon --num-events=3 --rising-edge gpiochip1 25 Habr\u00e1 un seguimiento de advertencia como se muestra a continuaci\u00f3n: Seguimiento de llamada: free_irq+0x204/0x360 lineevent_free+0x64/0x70 gpio_ioctl+0x598/0x6a0 __arm64_sys_ioctl+0xb4/0x100 invoke_syscall+0x5c/0x130 ...... 0x1a0/0x1a4 El motivo de este problema es que fall\u00f3 la llamada a la funci\u00f3n request_threaded_irq() y luego se invoca lineevent_free() para liberar el recurso. 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}


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