CVE-2023-54199

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> drm/msm/adreno: Fix null ptr access in adreno_gpu_cleanup()<br /> <br /> Fix the below kernel panic due to null pointer access:<br /> [ 18.504431] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000048<br /> [ 18.513464] Mem abort info:<br /> [ 18.516346] ESR = 0x0000000096000005<br /> [ 18.520204] EC = 0x25: DABT (current EL), IL = 32 bits<br /> [ 18.525706] SET = 0, FnV = 0<br /> [ 18.528878] EA = 0, S1PTW = 0<br /> [ 18.532117] FSC = 0x05: level 1 translation fault<br /> [ 18.537138] Data abort info:<br /> [ 18.540110] ISV = 0, ISS = 0x00000005<br /> [ 18.544060] CM = 0, WnR = 0<br /> [ 18.547109] user pgtable: 4k pages, 39-bit VAs, pgdp=0000000112826000<br /> [ 18.553738] [0000000000000048] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000<br /> [ 18.562690] Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP<br /> **Snip**<br /> [ 18.696758] Call trace:<br /> [ 18.699278] adreno_gpu_cleanup+0x30/0x88<br /> [ 18.703396] a6xx_destroy+0xc0/0x130<br /> [ 18.707066] a6xx_gpu_init+0x308/0x424<br /> [ 18.710921] adreno_bind+0x178/0x288<br /> [ 18.714590] component_bind_all+0xe0/0x214<br /> [ 18.718797] msm_drm_bind+0x1d4/0x614<br /> [ 18.722566] try_to_bring_up_aggregate_device+0x16c/0x1b8<br /> [ 18.728105] __component_add+0xa0/0x158<br /> [ 18.732048] component_add+0x20/0x2c<br /> [ 18.735719] adreno_probe+0x40/0xc0<br /> [ 18.739300] platform_probe+0xb4/0xd4<br /> [ 18.743068] really_probe+0xfc/0x284<br /> [ 18.746738] __driver_probe_device+0xc0/0xec<br /> [ 18.751129] driver_probe_device+0x48/0x110<br /> [ 18.755421] __device_attach_driver+0xa8/0xd0<br /> [ 18.759900] bus_for_each_drv+0x90/0xdc<br /> [ 18.763843] __device_attach+0xfc/0x174<br /> [ 18.767786] device_initial_probe+0x20/0x2c<br /> [ 18.772090] bus_probe_device+0x40/0xa0<br /> [ 18.776032] deferred_probe_work_func+0x94/0xd0<br /> [ 18.780686] process_one_work+0x190/0x3d0<br /> [ 18.784805] worker_thread+0x280/0x3d4<br /> [ 18.788659] kthread+0x104/0x1c0<br /> [ 18.791981] ret_from_fork+0x10/0x20<br /> [ 18.795654] Code: f9400408 aa0003f3 aa1f03f4 91142015 (f9402516)<br /> [ 18.801913] ---[ end trace 0000000000000000 ]---<br /> [ 18.809039] Kernel panic - not syncing: Oops: Fatal exception<br /> <br /> Patchwork: https://patchwork.freedesktop.org/patch/515605/