------------[ cut here ]------------ WARNING: CPU: 1 PID: 18071 at kernel/dma/mapping.c:188 __dma_map_sg_attrs+0x181/0x1f0 kernel/dma/mapping.c:188 Modules linked in: CPU: 1 PID: 18071 Comm: syz-executor.1 Not tainted 5.19.0-syzkaller-02972-g200e340f2196 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 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 a0 ec c2 0d e9 db fe ff ff e8 56 b2 13 00 0f 0b e8 4f b2 13 00 <0f> 0b 45 31 e4 e9 54 ff ff ff e8 40 b2 13 00 49 8d 7f 50 48 b8 00 RSP: 0018:ffffc90005857d68 EFLAGS: 00010212 RAX: 0000000000000726 RBX: 0000000000000000 RCX: ffffc90005052000 RDX: 0000000000040000 RSI: ffffffff81672771 RDI: ffff888147113378 RBP: ffff888147113000 R08: 0000000000000005 R09: 0000000000000002 R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000002 R13: ffff8880735e5e00 R14: 0000000000000004 R15: 0000000000000000 FS: 00007f22fa90d700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f290636d058 CR3: 0000000075496000 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:75 begin_cpu_udmabuf+0x130/0x1d0 drivers/dma-buf/udmabuf.c:129 dma_buf_begin_cpu_access+0xfd/0x1e0 drivers/dma-buf/dma-buf.c:1185 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+0x63/0xcd RIP: 0033:0x7f22f9889279 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:00007f22fa90d168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f22f999bf80 RCX: 00007f22f9889279 RDX: 0000000020000440 RSI: 0000000040086200 RDI: 0000000000000006 RBP: 00007f22f98e3189 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f22f9ecfb1f R14: 00007f22fa90d300 R15: 0000000000022000