kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 3337 Comm: syzkaller507239 Not tainted 4.9.73-gf3f3457 #11
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801ca109800 task.stack: ffff8801c8040000
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] __read_once_size include/linux/compiler.h:243 [inline]
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] atomic_read arch/x86/include/asm/atomic.h:26 [inline]
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] page_ref_count include/linux/page_ref.h:66 [inline]
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] put_page_testzero include/linux/mm.h:450 [inline]
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] __free_pages+0x21/0x80 mm/page_alloc.c:3903
RSP: 0018:ffff8801c8047940  EFLAGS: 00010a07
RAX: dffffc0000000000 RBX: dead4ead00000000 RCX: ffffffff82664f9b
RDX: 1bd5a9d5a0000003 RSI: 0000000000000001 RDI: dead4ead0000001c
RBP: ffff8801c8047950 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000004
R13: 0000000000000020 R14: ffff8801ba3a4200 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:0000000009a1b840
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000020a77fc0 CR3: 00000001c95f0000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8801ca109800 ffff8801ba3a4358 ffff8801c80479b0 ffffffff82664fc1
 ffff8801ba3a4370 ffffed003747486b ffffed003747486e ffff8801ba3a4368
 dead4ead00000000 ffff8801ba3a4340 0000000000000000 0000000000000000
Call Trace:
 [<ffffffff82664fc1>] sg_remove_scat.isra.19+0x1c1/0x2d0 drivers/scsi/sg.c:1954
 [<ffffffff82665385>] sg_finish_rem_req+0x2b5/0x340 drivers/scsi/sg.c:1836
 [<ffffffff82665449>] sg_new_read.isra.20+0x39/0x3e0 drivers/scsi/sg.c:567
 [<ffffffff8266703d>] sg_read+0x8bd/0x1440 drivers/scsi/sg.c:456
 [<ffffffff8156a4e1>] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714
 [<ffffffff8156f402>] do_loop_readv_writev fs/read_write.c:1105 [inline]
 [<ffffffff8156f402>] compat_do_readv_writev+0x522/0x760 fs/read_write.c:1099
 [<ffffffff8156f723>] compat_readv+0xe3/0x150 fs/read_write.c:1128
 [<ffffffff8156f884>] do_compat_readv+0xf4/0x1d0 fs/read_write.c:1148
 [<ffffffff81571df6>] C_SYSC_readv fs/read_write.c:1160 [inline]
 [<ffffffff81571df6>] compat_SyS_readv+0x26/0x30 fs/read_write.c:1156
 [<ffffffff81006fc7>] do_syscall_32_irqs_on arch/x86/entry/common.c:322 [inline]
 [<ffffffff81006fc7>] do_fast_syscall_32+0x2f7/0x890 arch/x86/entry/common.c:384
 [<ffffffff838b0be1>] entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:124
Code: e9 27 fc ff ff 0f 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 55 48 89 e5 53 48 89 fb 48 83 c7 1c 48 89 fa 48 83 ec 08 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 3d 
RIP  [<ffffffff8144d081>] __read_once_size include/linux/compiler.h:243 [inline]
RIP  [<ffffffff8144d081>] atomic_read arch/x86/include/asm/atomic.h:26 [inline]
RIP  [<ffffffff8144d081>] page_ref_count include/linux/page_ref.h:66 [inline]
RIP  [<ffffffff8144d081>] put_page_testzero include/linux/mm.h:450 [inline]
RIP  [<ffffffff8144d081>] __free_pages+0x21/0x80 mm/page_alloc.c:3903
 RSP <ffff8801c8047940>
general protection fault: 0000 [#2] PREEMPT SMP KASAN
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 3334 Comm: syzkaller507239 Tainted: G      D         4.9.73-gf3f3457 #11
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801c90d6000 task.stack: ffff8801c91f0000
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] __read_once_size include/linux/compiler.h:243 [inline]
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] atomic_read arch/x86/include/asm/atomic.h:26 [inline]
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] page_ref_count include/linux/page_ref.h:66 [inline]
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] put_page_testzero include/linux/mm.h:450 [inline]
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] __free_pages+0x21/0x80 mm/page_alloc.c:3903
RSP: 0018:ffff8801c91f7940  EFLAGS: 00010a07
RAX: dffffc0000000000 RBX: dead4ead00000000 RCX: ffffffff82664f9b
RDX: 1bd5a9d5a0000003 RSI: 0000000000000001 RDI: dead4ead0000001c
RBP: ffff8801c91f7950 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: ffff8801c90d6000 R12: 0000000000000004
R13: 0000000000000020 R14: ffff8801c6b3a100 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8801db200000(0063) knlGS:0000000009a1b840
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000020a77fc0 CR3: 00000001c8aab000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8801c90d6000 ffff8801c6b3a258 ffff8801c91f79b0 ffffffff82664fc1
 ffff8801c6b3a270 ffffed0038d6744b ffffed0038d6744e ffff8801c6b3a268
 dead4ead00000000 ffff8801c6b3a240 0000000000000000 0000000000000000
Call Trace:
 [<ffffffff82664fc1>] sg_remove_scat.isra.19+0x1c1/0x2d0 drivers/scsi/sg.c:1954
 [<ffffffff82665385>] sg_finish_rem_req+0x2b5/0x340 drivers/scsi/sg.c:1836
 [<ffffffff82665449>] sg_new_read.isra.20+0x39/0x3e0 drivers/scsi/sg.c:567
 [<ffffffff8266703d>] sg_read+0x8bd/0x1440 drivers/scsi/sg.c:456
 [<ffffffff8156a4e1>] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714
 [<ffffffff8156f402>] do_loop_readv_writev fs/read_write.c:1105 [inline]
 [<ffffffff8156f402>] compat_do_readv_writev+0x522/0x760 fs/read_write.c:1099
 [<ffffffff8156f723>] compat_readv+0xe3/0x150 fs/read_write.c:1128
 [<ffffffff8156f884>] do_compat_readv+0xf4/0x1d0 fs/read_write.c:1148
 [<ffffffff81571df6>] C_SYSC_readv fs/read_write.c:1160 [inline]
 [<ffffffff81571df6>] compat_SyS_readv+0x26/0x30 fs/read_write.c:1156
 [<ffffffff81006fc7>] do_syscall_32_irqs_on arch/x86/entry/common.c:322 [inline]
 [<ffffffff81006fc7>] do_fast_syscall_32+0x2f7/0x890 arch/x86/entry/common.c:384
 [<ffffffff838b0be1>] entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:124
Code: e9 27 fc ff ff 0f 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 55 48 89 e5 53 48 89 fb 48 83 c7 1c 48 89 fa 48 83 ec 08 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 3d 
RIP  [<ffffffff8144d081>] __read_once_size include/linux/compiler.h:243 [inline]
RIP  [<ffffffff8144d081>] atomic_read arch/x86/include/asm/atomic.h:26 [inline]
RIP  [<ffffffff8144d081>] page_ref_count include/linux/page_ref.h:66 [inline]
RIP  [<ffffffff8144d081>] put_page_testzero include/linux/mm.h:450 [inline]
RIP  [<ffffffff8144d081>] __free_pages+0x21/0x80 mm/page_alloc.c:3903
 RSP <ffff8801c91f7940>
general protection fault: 0000 [#3] PREEMPT SMP KASAN
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 3338 Comm: syzkaller507239 Tainted: G      D         4.9.73-gf3f3457 #11
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801ca10e000 task.stack: ffff8801c8000000
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] __read_once_size include/linux/compiler.h:243 [inline]
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] atomic_read arch/x86/include/asm/atomic.h:26 [inline]
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] page_ref_count include/linux/page_ref.h:66 [inline]
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] put_page_testzero include/linux/mm.h:450 [inline]
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] __free_pages+0x21/0x80 mm/page_alloc.c:3903
RSP: 0018:ffff8801c8007940  EFLAGS: 00010a07
RAX: dffffc0000000000 RBX: dead4ead00000000 RCX: ffffffff82664f9b
RDX: 1bd5a9d5a0000003 RSI: 0000000000000001 RDI: dead4ead0000001c
RBP: ffff8801c8007950 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: ffff8801ca10e000 R12: 0000000000000004
R13: 0000000000000020 R14: ffff8801c6ada100 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:0000000009a1b840
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000020a77fc0 CR3: 00000001c99ef000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8801ca10e000 ffff8801c6ada258 ffff8801c80079b0 ffffffff82664fc1
 ffff8801c6ada270 ffffed0038d5b44b ffffed0038d5b44e ffff8801c6ada268
 dead4ead00000000 ffff8801c6ada240 0000000000000000 0000000000000000
Call Trace:
 [<ffffffff82664fc1>] sg_remove_scat.isra.19+0x1c1/0x2d0 drivers/scsi/sg.c:1954
 [<ffffffff82665385>] sg_finish_rem_req+0x2b5/0x340 drivers/scsi/sg.c:1836
 [<ffffffff82665449>] sg_new_read.isra.20+0x39/0x3e0 drivers/scsi/sg.c:567
 [<ffffffff8266703d>] sg_read+0x8bd/0x1440 drivers/scsi/sg.c:456
 [<ffffffff8156a4e1>] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714
 [<ffffffff8156f402>] do_loop_readv_writev fs/read_write.c:1105 [inline]
 [<ffffffff8156f402>] compat_do_readv_writev+0x522/0x760 fs/read_write.c:1099
 [<ffffffff8156f723>] compat_readv+0xe3/0x150 fs/read_write.c:1128
 [<ffffffff8156f884>] do_compat_readv+0xf4/0x1d0 fs/read_write.c:1148
 [<ffffffff81571df6>] C_SYSC_readv fs/read_write.c:1160 [inline]
 [<ffffffff81571df6>] compat_SyS_readv+0x26/0x30 fs/read_write.c:1156
 [<ffffffff81006fc7>] do_syscall_32_irqs_on arch/x86/entry/common.c:322 [inline]
 [<ffffffff81006fc7>] do_fast_syscall_32+0x2f7/0x890 arch/x86/entry/common.c:384
 [<ffffffff838b0be1>] entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:124
Code: e9 27 fc ff ff 0f 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 55 48 89 e5 53 48 89 fb 48 83 c7 1c 48 89 fa 48 83 ec 08 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 3d 
RIP  [<ffffffff8144d081>] __read_once_size include/linux/compiler.h:243 [inline]
RIP  [<ffffffff8144d081>] atomic_read arch/x86/include/asm/atomic.h:26 [inline]
RIP  [<ffffffff8144d081>] page_ref_count include/linux/page_ref.h:66 [inline]
RIP  [<ffffffff8144d081>] put_page_testzero include/linux/mm.h:450 [inline]
RIP  [<ffffffff8144d081>] __free_pages+0x21/0x80 mm/page_alloc.c:3903
 RSP <ffff8801c8007940>
general protection fault: 0000 [#4] PREEMPT SMP KASAN
Dumping ftrace buffer:
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 3331 Comm: syzkaller507239 Tainted: G      D         4.9.73-gf3f3457 #11
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801ca323000 task.stack: ffff8801c8098000
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] __read_once_size include/linux/compiler.h:243 [inline]
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] atomic_read arch/x86/include/asm/atomic.h:26 [inline]
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] page_ref_count include/linux/page_ref.h:66 [inline]
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] put_page_testzero include/linux/mm.h:450 [inline]
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] __free_pages+0x21/0x80 mm/page_alloc.c:3903
RSP: 0018:ffff8801c809f940  EFLAGS: 00010a07
RAX: dffffc0000000000 RBX: dead4ead00000000 RCX: ffffffff82664f9b
RDX: 1bd5a9d5a0000003 RSI: 0000000000000001 RDI: dead4ead0000001c
RBP: ffff8801c809f950 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: ffff8801ca323000 R12: 0000000000000004
R13: 0000000000000020 R14: ffff8801c6b3c200 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8801db200000(0063) knlGS:0000000009a1b840
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000020a77fc0 CR3: 00000001c8947000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8801ca323000 ffff8801c6b3c358 ffff8801c809f9b0 ffffffff82664fc1
 ffff8801c6b3c370 ffffed0038d6786b ffffed0038d6786e ffff8801c6b3c368
 dead4ead00000000 ffff8801c6b3c340 0000000000000000 0000000000000000
Call Trace:
 [<ffffffff82664fc1>] sg_remove_scat.isra.19+0x1c1/0x2d0 drivers/scsi/sg.c:1954
 [<ffffffff82665385>] sg_finish_rem_req+0x2b5/0x340 drivers/scsi/sg.c:1836
 [<ffffffff82665449>] sg_new_read.isra.20+0x39/0x3e0 drivers/scsi/sg.c:567
 [<ffffffff8266703d>] sg_read+0x8bd/0x1440 drivers/scsi/sg.c:456
 [<ffffffff8156a4e1>] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714
 [<ffffffff8156f402>] do_loop_readv_writev fs/read_write.c:1105 [inline]
 [<ffffffff8156f402>] compat_do_readv_writev+0x522/0x760 fs/read_write.c:1099
 [<ffffffff8156f723>] compat_readv+0xe3/0x150 fs/read_write.c:1128
 [<ffffffff8156f884>] do_compat_readv+0xf4/0x1d0 fs/read_write.c:1148
 [<ffffffff81571df6>] C_SYSC_readv fs/read_write.c:1160 [inline]
 [<ffffffff81571df6>] compat_SyS_readv+0x26/0x30 fs/read_write.c:1156
 [<ffffffff81006fc7>] do_syscall_32_irqs_on arch/x86/entry/common.c:322 [inline]
 [<ffffffff81006fc7>] do_fast_syscall_32+0x2f7/0x890 arch/x86/entry/common.c:384
 [<ffffffff838b0be1>] entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:124
Code: e9 27 fc ff ff 0f 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 55 48 89 e5 53 48 89 fb 48 83 c7 1c 48 89 fa 48 83 ec 08 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 3d 
RIP  [<ffffffff8144d081>] __read_once_size include/linux/compiler.h:243 [inline]
RIP  [<ffffffff8144d081>] atomic_read arch/x86/include/asm/atomic.h:26 [inline]
RIP  [<ffffffff8144d081>] page_ref_count include/linux/page_ref.h:66 [inline]
RIP  [<ffffffff8144d081>] put_page_testzero include/linux/mm.h:450 [inline]
RIP  [<ffffffff8144d081>] __free_pages+0x21/0x80 mm/page_alloc.c:3903
 RSP <ffff8801c809f940>
general protection fault: 0000 [#5] PREEMPT SMP KASAN
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 3333 Comm: syzkaller507239 Tainted: G      D         4.9.73-gf3f3457 #11
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801ca321800 task.stack: ffff8801c80c0000
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] __read_once_size include/linux/compiler.h:243 [inline]
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] atomic_read arch/x86/include/asm/atomic.h:26 [inline]
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] page_ref_count include/linux/page_ref.h:66 [inline]
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] put_page_testzero include/linux/mm.h:450 [inline]
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] __free_pages+0x21/0x80 mm/page_alloc.c:3903
RSP: 0018:ffff8801c80c7940  EFLAGS: 00010a07
RAX: dffffc0000000000 RBX: dead4ead00000000 RCX: ffffffff82664f9b
RDX: 1bd5a9d5a0000003 RSI: 0000000000000001 RDI: dead4ead0000001c
RBP: ffff8801c80c7950 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: ffff8801ca321800 R12: 0000000000000004
R13: 0000000000000020 R14: ffff8801c6adc200 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:0000000009a1b840
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000020a77fc0 CR3: 00000001c8b04000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8801ca321800 ffff8801c6adc358 ffff8801c80c79b0 ffffffff82664fc1
 ffff8801c6adc370 ffffed0038d5b86b ffffed0038d5b86e ffff8801c6adc368
 dead4ead00000000 ffff8801c6adc340 0000000000000000 0000000000000000
Call Trace:
 [<ffffffff82664fc1>] sg_remove_scat.isra.19+0x1c1/0x2d0 drivers/scsi/sg.c:1954
 [<ffffffff82665385>] sg_finish_rem_req+0x2b5/0x340 drivers/scsi/sg.c:1836
 [<ffffffff82665449>] sg_new_read.isra.20+0x39/0x3e0 drivers/scsi/sg.c:567
 [<ffffffff8266703d>] sg_read+0x8bd/0x1440 drivers/scsi/sg.c:456
 [<ffffffff8156a4e1>] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714
 [<ffffffff8156f402>] do_loop_readv_writev fs/read_write.c:1105 [inline]
 [<ffffffff8156f402>] compat_do_readv_writev+0x522/0x760 fs/read_write.c:1099
 [<ffffffff8156f723>] compat_readv+0xe3/0x150 fs/read_write.c:1128
 [<ffffffff8156f884>] do_compat_readv+0xf4/0x1d0 fs/read_write.c:1148
 [<ffffffff81571df6>] C_SYSC_readv fs/read_write.c:1160 [inline]
 [<ffffffff81571df6>] compat_SyS_readv+0x26/0x30 fs/read_write.c:1156
 [<ffffffff81006fc7>] do_syscall_32_irqs_on arch/x86/entry/common.c:322 [inline]
 [<ffffffff81006fc7>] do_fast_syscall_32+0x2f7/0x890 arch/x86/entry/common.c:384
 [<ffffffff838b0be1>] entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:124
Code: e9 27 fc ff ff 0f 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 55 48 89 e5 53 48 89 fb 48 83 c7 1c 48 89 fa 48 83 ec 08 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 3d 
RIP  [<ffffffff8144d081>] __read_once_size include/linux/compiler.h:243 [inline]
RIP  [<ffffffff8144d081>] atomic_read arch/x86/include/asm/atomic.h:26 [inline]
RIP  [<ffffffff8144d081>] page_ref_count include/linux/page_ref.h:66 [inline]
RIP  [<ffffffff8144d081>] put_page_testzero include/linux/mm.h:450 [inline]
RIP  [<ffffffff8144d081>] __free_pages+0x21/0x80 mm/page_alloc.c:3903
 RSP <ffff8801c80c7940>
general protection fault: 0000 [#6] PREEMPT SMP KASAN
Dumping ftrace buffer:
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 3336 Comm: syzkaller507239 Tainted: G      D         4.9.73-gf3f3457 #11
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801ca10b000 task.stack: ffff8801c8068000
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] __read_once_size include/linux/compiler.h:243 [inline]
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] atomic_read arch/x86/include/asm/atomic.h:26 [inline]
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] page_ref_count include/linux/page_ref.h:66 [inline]
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] put_page_testzero include/linux/mm.h:450 [inline]
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] __free_pages+0x21/0x80 mm/page_alloc.c:3903
RSP: 0018:ffff8801c806f940  EFLAGS: 00010a07
RAX: dffffc0000000000 RBX: dead4ead00000000 RCX: ffffffff82664f9b
RDX: 1bd5a9d5a0000003 RSI: 0000000000000001 RDI: dead4ead0000001c
RBP: ffff8801c806f950 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: ffff8801ca10b000 R12: 0000000000000004
R13: 0000000000000020 R14: ffff8801c6b48000 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8801db200000(0063) knlGS:0000000009a1b840
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000020a77fc0 CR3: 00000001cb774000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8801ca10b000 ffff8801c6b48158 ffff8801c806f9b0 ffffffff82664fc1
 ffff8801c6b48170 ffffed0038d6902b ffffed0038d6902e ffff8801c6b48168
 dead4ead00000000 ffff8801c6b48140 0000000000000000 0000000000000000
Call Trace:
 [<ffffffff82664fc1>] sg_remove_scat.isra.19+0x1c1/0x2d0 drivers/scsi/sg.c:1954
 [<ffffffff82665385>] sg_finish_rem_req+0x2b5/0x340 drivers/scsi/sg.c:1836
 [<ffffffff82665449>] sg_new_read.isra.20+0x39/0x3e0 drivers/scsi/sg.c:567
 [<ffffffff8266703d>] sg_read+0x8bd/0x1440 drivers/scsi/sg.c:456
 [<ffffffff8156a4e1>] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714
 [<ffffffff8156f402>] do_loop_readv_writev fs/read_write.c:1105 [inline]
 [<ffffffff8156f402>] compat_do_readv_writev+0x522/0x760 fs/read_write.c:1099
 [<ffffffff8156f723>] compat_readv+0xe3/0x150 fs/read_write.c:1128
 [<ffffffff8156f884>] do_compat_readv+0xf4/0x1d0 fs/read_write.c:1148
 [<ffffffff81571df6>] C_SYSC_readv fs/read_write.c:1160 [inline]
 [<ffffffff81571df6>] compat_SyS_readv+0x26/0x30 fs/read_write.c:1156
 [<ffffffff81006fc7>] do_syscall_32_irqs_on arch/x86/entry/common.c:322 [inline]
 [<ffffffff81006fc7>] do_fast_syscall_32+0x2f7/0x890 arch/x86/entry/common.c:384
 [<ffffffff838b0be1>] entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:124
Code: e9 27 fc ff ff 0f 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 55 48 89 e5 53 48 89 fb 48 83 c7 1c 48 89 fa 48 83 ec 08 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 3d 
RIP  [<ffffffff8144d081>] __read_once_size include/linux/compiler.h:243 [inline]
RIP  [<ffffffff8144d081>] atomic_read arch/x86/include/asm/atomic.h:26 [inline]
RIP  [<ffffffff8144d081>] page_ref_count include/linux/page_ref.h:66 [inline]
RIP  [<ffffffff8144d081>] put_page_testzero include/linux/mm.h:450 [inline]
RIP  [<ffffffff8144d081>] __free_pages+0x21/0x80 mm/page_alloc.c:3903
 RSP <ffff8801c806f940>
general protection fault: 0000 [#7] PREEMPT SMP KASAN
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 3335 Comm: syzkaller507239 Tainted: G      D         4.9.73-gf3f3457 #11
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801ca10c800 task.stack: ffff8801c8088000
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] __read_once_size include/linux/compiler.h:243 [inline]
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] atomic_read arch/x86/include/asm/atomic.h:26 [inline]
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] page_ref_count include/linux/page_ref.h:66 [inline]
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] put_page_testzero include/linux/mm.h:450 [inline]
RIP: 0010:[<ffffffff8144d081>]  [<ffffffff8144d081>] __free_pages+0x21/0x80 mm/page_alloc.c:3903
RSP: 0018:ffff8801c808f940  EFLAGS: 00010a07
RAX: dffffc0000000000 RBX: dead4ead00000000 RCX: ffffffff82664f9b
RDX: 1bd5a9d5a0000003 RSI: 0000000000000001 RDI: dead4ead0000001c
RBP: ffff8801c808f950 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: ffff8801ca10c800 R12: 0000000000000004
R13: 0000000000000020 R14: ffff8801c6af0000 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:0000000009a1b840
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000020a77fc0 CR3: 00000001c8943000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8801ca10c800 ffff8801c6af0158 ffff8801c808f9b0 ffffffff82664fc1
 ffff8801c6af0170 ffffed0038d5e02b ffffed0038d5e02e ffff8801c6af0168
 dead4ead00000000 ffff8801c6af0140 0000000000000000 0000000000000000
Call Trace:
 [<ffffffff82664fc1>] sg_remove_scat.isra.19+0x1c1/0x2d0 drivers/scsi/sg.c:1954
 [<ffffffff82665385>] sg_finish_rem_req+0x2b5/0x340 drivers/scsi/sg.c:1836
 [<ffffffff82665449>] sg_new_read.isra.20+0x39/0x3e0 drivers/scsi/sg.c:567
 [<ffffffff8266703d>] sg_read+0x8bd/0x1440 drivers/scsi/sg.c:456
 [<ffffffff8156a4e1>] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714
 [<ffffffff8156f402>] do_loop_readv_writev fs/read_write.c:1105 [inline]
 [<ffffffff8156f402>] compat_do_readv_writev+0x522/0x760 fs/read_write.c:1099
 [<ffffffff8156f723>] compat_readv+0xe3/0x150 fs/read_write.c:1128
 [<ffffffff8156f884>] do_compat_readv+0xf4/0x1d0 fs/read_write.c:1148
 [<ffffffff81571df6>] C_SYSC_readv fs/read_write.c:1160 [inline]
 [<ffffffff81571df6>] compat_SyS_readv+0x26/0x30 fs/read_write.c:1156
 [<ffffffff81006fc7>] do_syscall_32_irqs_on arch/x86/entry/common.c:322 [inline]
 [<ffffffff81006fc7>] do_fast_syscall_32+0x2f7/0x890 arch/x86/entry/common.c:384
 [<ffffffff838b0be1>] entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:124
Code: e9 27 fc ff ff 0f 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 55 48 89 e5 53 48 89 fb 48 83 c7 1c 48 89 fa 48 83 ec 08 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 3d 
RIP  [<ffffffff8144d081>] __read_once_size include/linux/compiler.h:243 [inline]
RIP  [<ffffffff8144d081>] atomic_read arch/x86/include/asm/atomic.h:26 [inline]
RIP  [<ffffffff8144d081>] page_ref_count include/linux/page_ref.h:66 [inline]
RIP  [<ffffffff8144d081>] put_page_testzero include/linux/mm.h:450 [inline]
RIP  [<ffffffff8144d081>] __free_pages+0x21/0x80 mm/page_alloc.c:3903
 RSP <ffff8801c808f940>
general protection fault: 0000 [#8] PREEMPT SMP KASAN
---[ end trace ef496208d5be9bd1 ]---