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WARNING: CPU: 1 PID: 5878 at kernel/dma/mapping.c:190 dma_map_sg_attrs+0xb7/0x180 kernel/dma/mapping.c:188
Modules linked in:
CPU: 0 PID: 5878 Comm: syz-executor121 Not tainted 5.11.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:dma_map_sg_attrs+0xb7/0x180 kernel/dma/mapping.c:190
Code: 40 ee a0 8d 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 88 00 00 00 83 f9 02 48 8b 1d ed c4 48 0c 76 8c 0f 0b <0f> 0b 31 c0 eb c4 48 8d 7b 50 48 b8 00 00 00 00 00 fc ff df 48 89
RSP: 0018:ffffc900016bfdb0 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000002
RDX: 1ffff11028d0a281 RSI: ffff888022b25d40 RDI: ffff888146851408
RBP: ffff888146851000 R08: 0000000000000000 R09: 00000000fffff000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
R13: 0000000000000002 R14: ffff8880244f9680 R15: 0000000000000000
FS:  00005555568ed300(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200000cc CR3: 00000000225d1000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 dma_map_sgtable include/linux/dma-mapping.h:324 [inline]
 get_sg_table.isra.0+0x115/0x200 drivers/dma-buf/udmabuf.c:66
 begin_cpu_udmabuf+0x10b/0x1d0 drivers/dma-buf/udmabuf.c:120
 dma_buf_begin_cpu_access+0x62/0xe0 drivers/dma-buf/dma-buf.c:1125
 dma_buf_ioctl+0x317/0x4a0 drivers/dma-buf/dma-buf.c:400
 vfs_ioctl fs/ioctl.c:48 [inline]
 __do_sys_ioctl fs/ioctl.c:753 [inline]
 __se_sys_ioctl fs/ioctl.c:739 [inline]
 __x64_sys_ioctl+0x11f/0x190 fs/ioctl.c:739
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f4927f08c29
Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe20c20df8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f4927f08c29
RDX: 0000000020000200 RSI: 0000000040086200 RDI: 0000000000000006
RBP: 00007f4927eccdd0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4927ecce60
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000