------------[ cut here ]------------ WARNING: CPU: 1 PID: 7040 at kernel/dma/mapping.c:188 __dma_map_sg_attrs+0x181/0x1f0 kernel/dma/mapping.c:188 Modules linked in: CPU: 1 PID: 7040 Comm: syz-executor.2 Not tainted 5.19.0-rc1-next-20220606-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__dma_map_sg_attrs+0x181/0x1f0 kernel/dma/mapping.c:188 Code: 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 71 4c 8b 3d 60 47 c3 0d e9 db fe ff ff e8 e6 a4 13 00 0f 0b e8 df a4 13 00 <0f> 0b 45 31 e4 e9 54 ff ff ff e8 d0 a4 13 00 49 8d 7f 50 48 b8 00 RSP: 0018:ffffc90008d47d68 EFLAGS: 00010212 RAX: 00000000000010cc RBX: 0000000000000000 RCX: ffffc90006709000 RDX: 0000000000040000 RSI: ffffffff8166ccb1 RDI: ffff8881471e5378 RBP: ffff8881471e5000 R08: 0000000000000005 R09: 0000000000000002 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001 R13: ffff888075f65400 R14: 0000000000000002 R15: 0000000000000000 FS: 00007f60b1a23700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555556666888 CR3: 00000000226dd000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: dma_map_sgtable+0x70/0xf0 kernel/dma/mapping.c:264 get_sg_table.isra.0+0xe0/0x160 drivers/dma-buf/udmabuf.c:72 begin_cpu_udmabuf+0x130/0x1d0 drivers/dma-buf/udmabuf.c:126 dma_buf_begin_cpu_access+0xfd/0x1e0 drivers/dma-buf/dma-buf.c:1186 dma_buf_ioctl+0x259/0x2b0 drivers/dma-buf/dma-buf.c:364 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 RIP: 0033:0x7f60b0889109 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f60b1a23168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f60b099bf60 RCX: 00007f60b0889109 RDX: 0000000020000100 RSI: 0000000040086200 RDI: 0000000000000006 RBP: 00007f60b08e308d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc3f0db71f R14: 00007f60b1a23300 R15: 0000000000022000