CVE-2023-52912

In the Linux kernel, the following vulnerability has been resolved:

drm/amdgpu: Fixed bug on error when unloading amdgpu

Fixed bug on error when unloading amdgpu.

The error message is as follows: [ 377.706202] kernel BUG at drivers/gpu/drm/drmbuddy.c:278! [ 377.706215] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI [ 377.706222] CPU: 4 PID: 8610 Comm: modprobe Tainted: G IOE 6.0.0-thomas #1 [ 377.706231] Hardware name: ASUS System Product Name/PRIME Z390-A, BIOS 2004 11/02/2021 [ 377.706238] RIP: 0010:drmbuddyfreeblock+0x26/0x30 [drmbuddy] [ 377.706264] Code: 00 00 00 90 0f 1f 44 00 00 48 8b 0e 89 c8 25 00 0c 00 00 3d 00 04 00 00 75 10 48 8b 47 18 48 d3 e0 48 01 47 28 e9 fa fe ff ff <0f> 0b 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 41 54 55 48 89 f5 53 [ 377.706282] RSP: 0018:ffffad2dc4683cb8 EFLAGS: 00010287 [ 377.706289] RAX: 0000000000000000 RBX: ffff8b1743bd5138 RCX: 0000000000000000 [ 377.706297] RDX: ffff8b1743bd5160 RSI: ffff8b1743bd5c78 RDI: ffff8b16d1b25f70 [ 377.706304] RBP: ffff8b1743bd59e0 R08: 0000000000000001 R09: 0000000000000001 [ 377.706311] R10: ffff8b16c8572400 R11: ffffad2dc4683cf0 R12: ffff8b16d1b25f70 [ 377.706318] R13: ffff8b16d1b25fd0 R14: ffff8b1743bd59c0 R15: ffff8b16d1b25f70 [ 377.706325] FS: 00007fec56c72c40(0000) GS:ffff8b1836500000(0000) knlGS:0000000000000000 [ 377.706334] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 377.706340] CR2: 00007f9b88c1ba50 CR3: 0000000110450004 CR4: 00000000003706e0 [ 377.706347] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 377.706354] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 377.706361] Call Trace: [ 377.706365] <TASK> [ 377.706369] drmbuddyfreelist+0x2a/0x60 [drmbuddy] [ 377.706376] amdgpuvrammgrfini+0xea/0x180 [amdgpu] [ 377.706572] amdgputtmfini+0x12e/0x1a0 [amdgpu] [ 377.706650] amdgpubofini+0x22/0x90 [amdgpu] [ 377.706727] gmcv110swfini+0x26/0x30 [amdgpu] [ 377.706821] amdgpudevicefinisw+0xa1/0x3c0 [amdgpu] [ 377.706897] amdgpudriverreleasekms+0x12/0x30 [amdgpu] [ 377.706975] drmdevrelease+0x20/0x40 [drm] [ 377.707006] releasenodes+0x35/0xb0 [ 377.707014] devresreleaseall+0x8b/0xc0 [ 377.707020] deviceunbindcleanup+0xe/0x70 [ 377.707027] devicereleasedriverinternal+0xee/0x160 [ 377.707033] driverdetach+0x44/0x90 [ 377.707039] busremovedriver+0x55/0xe0 [ 377.707045] pciunregisterdriver+0x3b/0x90 [ 377.707052] amdgpuexit+0x11/0x6c [amdgpu] [ 377.707194] _x64sysdeletemodule+0x142/0x2b0 [ 377.707201] ? fpregsassertstateconsistent+0x22/0x50 [ 377.707208] ? exittousermodeprepare+0x3e/0x190 [ 377.707215] dosyscall64+0x38/0x90 [ 377.707221] entrySYSCALL64after_hwframe+0x63/0xcd