CVE-2024-57844: fallo en Linux
drm/xe: Fix fault on fd close after unbind
Publicada el · Actualizada el
3Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackepss 0.2%
probabilidad de explotación
0.2%top 92% de las CVE
explotación observada
noninguna fuente lo reporta
In the Linux kernel, the following vulnerability has been resolved:
drm/xe: Fix fault on fd close after unbind
If userspace holds an fd open, unbinds the device and then closes it,
the driver shouldn't try to access the hardware. Protect it by using
drm_dev_enter()/drm_dev_exit(). This fixes the following page fault:
<6> [IGT] xe_wedged: exiting, ret=98
<1> BUG: unable to handle page fault for address: ffffc901bc5e508c
<1> #PF: supervisor read access in kernel mode
<1> #PF: error_code(0x0000) - not-present page
...
<4> xe_lrc_update_timestamp+0x1c/0xd0 [xe]
<4> xe_exec_queue_update_run_ticks+0x50/0xb0 [xe]
<4> xe_exec_queue_fini+0x16/0xb0 [xe]
<4> __guc_exec_queue_fini_async+0xc4/0x190 [xe]
<4> guc_exec_queue_fini_async+0xa0/0xe0 [xe]
<4> guc_exec_queue_fini+0x23/0x40 [xe]
<4> xe_exec_queue_destroy+0xb3/0xf0 [xe]
<4> xe_file_close+0xd4/0x1a0 [xe]
<4> drm_file_free+0x210/0x280 [drm]
<4> drm_close_helper.isra.0+0x6d/0x80 [drm]
<4> drm_release_noglobal+0x20/0x90 [drm]
(cherry picked from commit 4ca1fd418338d4d135428a0eb1e16e3b3ce17ee8)
Productos afectados
Linux · LinuxCVEs relacionadas — Linux
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