BUG: Bad page state in process syz-executor.5 pfn:720f4 page:ffffea0001c83d00 count:0 mapcount:0 mapping:ffff88809f229860 index:0xf shmem_aops name:"memfd:" flags: 0x1fffc000008000c(uptodate|dirty|swapbacked) raw: 01fffc000008000c ffffea0001ea7c88 ffff88808636f600 ffff88809f229860 raw: 000000000000000f 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: non-NULL mapping Modules linked in: CPU: 0 PID: 21599 Comm: syz-executor.5 Not tainted 5.0.0-rc7-next-20190222 #41 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 bad_page.cold+0xda/0xff mm/page_alloc.c:586 free_pages_check_bad+0x142/0x1a0 mm/page_alloc.c:1013 free_pages_check mm/page_alloc.c:1022 [inline] free_pages_prepare mm/page_alloc.c:1112 [inline] free_pcp_prepare mm/page_alloc.c:1137 [inline] free_unref_page_prepare mm/page_alloc.c:3001 [inline] free_unref_page_list+0x31d/0xc40 mm/page_alloc.c:3070 release_pages+0x60d/0x1940 mm/swap.c:794 pagevec_lru_move_fn+0x218/0x2a0 mm/swap.c:213 __pagevec_lru_add mm/swap.c:920 [inline] __lru_cache_add+0x1c4/0x2d0 mm/swap.c:404 lru_cache_add_anon+0x1e2/0x360 mm/swap.c:416 shmem_getpage_gfp+0x79c/0x2500 mm/shmem.c:1872 shmem_getpage mm/shmem.c:139 [inline] shmem_file_read_iter+0x30a/0xbc0 mm/shmem.c:2546 call_read_iter include/linux/fs.h:1851 [inline] generic_file_splice_read+0x4b4/0x800 fs/splice.c:306 do_splice_to+0x12a/0x190 fs/splice.c:876 splice_direct_to_actor+0x2d2/0x970 fs/splice.c:953 do_splice_direct+0x1da/0x2a0 fs/splice.c:1062 do_sendfile+0x597/0xd00 fs/read_write.c:1442 __do_sys_sendfile64 fs/read_write.c:1503 [inline] __se_sys_sendfile64 fs/read_write.c:1489 [inline] __x64_sys_sendfile64+0x1dd/0x220 fs/read_write.c:1489 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e29 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f284f667c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000457e29 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000102000000 R11: 0000000000000246 R12: 00007f284f6686d4 R13: 00000000004c4dce R14: 00000000004d8af8 R15: 00000000ffffffff BUG: Bad page state in process syz-executor.5 pfn:7a9f2 page:ffffea0001ea7c80 count:0 mapcount:0 mapping:ffff88809f229860 index:0xe shmem_aops name:"memfd:" flags: 0x1fffc000008000c(uptodate|dirty|swapbacked) raw: 01fffc000008000c ffffea0001ea7cc8 ffff88808636f600 ffff88809f229860 raw: 000000000000000e 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: non-NULL mapping Modules linked in: CPU: 0 PID: 21599 Comm: syz-executor.5 Tainted: G B 5.0.0-rc7-next-20190222 #41 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 bad_page.cold+0xda/0xff mm/page_alloc.c:586 free_pages_check_bad+0x142/0x1a0 mm/page_alloc.c:1013 free_pages_check mm/page_alloc.c:1022 [inline] free_pages_prepare mm/page_alloc.c:1112 [inline] free_pcp_prepare mm/page_alloc.c:1137 [inline] free_unref_page_prepare mm/page_alloc.c:3001 [inline] free_unref_page_list+0x31d/0xc40 mm/page_alloc.c:3070 release_pages+0x60d/0x1940 mm/swap.c:794 pagevec_lru_move_fn+0x218/0x2a0 mm/swap.c:213 __pagevec_lru_add mm/swap.c:920 [inline] __lru_cache_add+0x1c4/0x2d0 mm/swap.c:404 lru_cache_add_anon+0x1e2/0x360 mm/swap.c:416 shmem_getpage_gfp+0x79c/0x2500 mm/shmem.c:1872 shmem_getpage mm/shmem.c:139 [inline] shmem_file_read_iter+0x30a/0xbc0 mm/shmem.c:2546 call_read_iter include/linux/fs.h:1851 [inline] generic_file_splice_read+0x4b4/0x800 fs/splice.c:306 do_splice_to+0x12a/0x190 fs/splice.c:876 splice_direct_to_actor+0x2d2/0x970 fs/splice.c:953 do_splice_direct+0x1da/0x2a0 fs/splice.c:1062 do_sendfile+0x597/0xd00 fs/read_write.c:1442 __do_sys_sendfile64 fs/read_write.c:1503 [inline] __se_sys_sendfile64 fs/read_write.c:1489 [inline] __x64_sys_sendfile64+0x1dd/0x220 fs/read_write.c:1489 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e29 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f284f667c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000457e29 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000102000000 R11: 0000000000000246 R12: 00007f284f6686d4 R13: 00000000004c4dce R14: 00000000004d8af8 R15: 00000000ffffffff BUG: Bad page state in process syz-executor.5 pfn:7a9f3 page:ffffea0001ea7cc0 count:0 mapcount:0 mapping:ffff88809f229860 index:0xd shmem_aops name:"memfd:" flags: 0x1fffc000008000c(uptodate|dirty|swapbacked) raw: 01fffc000008000c ffffea0001e3ff88 ffff88808636f600 ffff88809f229860 raw: 000000000000000d 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: non-NULL mapping Modules linked in: CPU: 0 PID: 21599 Comm: syz-executor.5 Tainted: G B 5.0.0-rc7-next-20190222 #41 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 bad_page.cold+0xda/0xff mm/page_alloc.c:586 free_pages_check_bad+0x142/0x1a0 mm/page_alloc.c:1013 free_pages_check mm/page_alloc.c:1022 [inline] free_pages_prepare mm/page_alloc.c:1112 [inline] free_pcp_prepare mm/page_alloc.c:1137 [inline] free_unref_page_prepare mm/page_alloc.c:3001 [inline] free_unref_page_list+0x31d/0xc40 mm/page_alloc.c:3070 release_pages+0x60d/0x1940 mm/swap.c:794 pagevec_lru_move_fn+0x218/0x2a0 mm/swap.c:213 __pagevec_lru_add mm/swap.c:920 [inline] __lru_cache_add+0x1c4/0x2d0 mm/swap.c:404 lru_cache_add_anon+0x1e2/0x360 mm/swap.c:416 shmem_getpage_gfp+0x79c/0x2500 mm/shmem.c:1872 shmem_getpage mm/shmem.c:139 [inline] shmem_file_read_iter+0x30a/0xbc0 mm/shmem.c:2546 call_read_iter include/linux/fs.h:1851 [inline] generic_file_splice_read+0x4b4/0x800 fs/splice.c:306 do_splice_to+0x12a/0x190 fs/splice.c:876 splice_direct_to_actor+0x2d2/0x970 fs/splice.c:953 do_splice_direct+0x1da/0x2a0 fs/splice.c:1062 do_sendfile+0x597/0xd00 fs/read_write.c:1442 __do_sys_sendfile64 fs/read_write.c:1503 [inline] __se_sys_sendfile64 fs/read_write.c:1489 [inline] __x64_sys_sendfile64+0x1dd/0x220 fs/read_write.c:1489 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e29 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f284f667c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000457e29 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000102000000 R11: 0000000000000246 R12: 00007f284f6686d4 R13: 00000000004c4dce R14: 00000000004d8af8 R15: 00000000ffffffff BUG: Bad page state in process syz-executor.5 pfn:78ffe page:ffffea0001e3ff80 count:0 mapcount:0 mapping:ffff88809f229860 index:0xc shmem_aops name:"memfd:" flags: 0x1fffc000008000c(uptodate|dirty|swapbacked) raw: 01fffc000008000c ffffea0001bc0348 ffff88808636f600 ffff88809f229860 raw: 000000000000000c 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: non-NULL mapping Modules linked in: CPU: 0 PID: 21599 Comm: syz-executor.5 Tainted: G B 5.0.0-rc7-next-20190222 #41 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 bad_page.cold+0xda/0xff mm/page_alloc.c:586 free_pages_check_bad+0x142/0x1a0 mm/page_alloc.c:1013 free_pages_check mm/page_alloc.c:1022 [inline] free_pages_prepare mm/page_alloc.c:1112 [inline] free_pcp_prepare mm/page_alloc.c:1137 [inline] free_unref_page_prepare mm/page_alloc.c:3001 [inline] free_unref_page_list+0x31d/0xc40 mm/page_alloc.c:3070 release_pages+0x60d/0x1940 mm/swap.c:794 pagevec_lru_move_fn+0x218/0x2a0 mm/swap.c:213 __pagevec_lru_add mm/swap.c:920 [inline] __lru_cache_add+0x1c4/0x2d0 mm/swap.c:404 lru_cache_add_anon+0x1e2/0x360 mm/swap.c:416 shmem_getpage_gfp+0x79c/0x2500 mm/shmem.c:1872 shmem_getpage mm/shmem.c:139 [inline] shmem_file_read_iter+0x30a/0xbc0 mm/shmem.c:2546 call_read_iter include/linux/fs.h:1851 [inline] generic_file_splice_read+0x4b4/0x800 fs/splice.c:306 do_splice_to+0x12a/0x190 fs/splice.c:876 splice_direct_to_actor+0x2d2/0x970 fs/splice.c:953 do_splice_direct+0x1da/0x2a0 fs/splice.c:1062 do_sendfile+0x597/0xd00 fs/read_write.c:1442 __do_sys_sendfile64 fs/read_write.c:1503 [inline] __se_sys_sendfile64 fs/read_write.c:1489 [inline] __x64_sys_sendfile64+0x1dd/0x220 fs/read_write.c:1489 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e29 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f284f667c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000457e29 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000102000000 R11: 0000000000000246 R12: 00007f284f6686d4 R13: 00000000004c4dce R14: 00000000004d8af8 R15: 00000000ffffffff BUG: Bad page state in process syz-executor.5 pfn:6f00d page:ffffea0001bc0340 count:0 mapcount:0 mapping:ffff88809f229860 index:0xb shmem_aops name:"memfd:" flags: 0x1fffc000008000c(uptodate|dirty|swapbacked) raw: 01fffc000008000c ffffea0001e4c0c8 ffff88808636f600 ffff88809f229860 raw: 000000000000000b 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: non-NULL mapping Modules linked in: CPU: 0 PID: 21599 Comm: syz-executor.5 Tainted: G B 5.0.0-rc7-next-20190222 #41 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 bad_page.cold+0xda/0xff mm/page_alloc.c:586 free_pages_check_bad+0x142/0x1a0 mm/page_alloc.c:1013 free_pages_check mm/page_alloc.c:1022 [inline] free_pages_prepare mm/page_alloc.c:1112 [inline] free_pcp_prepare mm/page_alloc.c:1137 [inline] free_unref_page_prepare mm/page_alloc.c:3001 [inline] free_unref_page_list+0x31d/0xc40 mm/page_alloc.c:3070 release_pages+0x60d/0x1940 mm/swap.c:794 pagevec_lru_move_fn+0x218/0x2a0 mm/swap.c:213 __pagevec_lru_add mm/swap.c:920 [inline] __lru_cache_add+0x1c4/0x2d0 mm/swap.c:404 lru_cache_add_anon+0x1e2/0x360 mm/swap.c:416 shmem_getpage_gfp+0x79c/0x2500 mm/shmem.c:1872 shmem_getpage mm/shmem.c:139 [inline] shmem_file_read_iter+0x30a/0xbc0 mm/shmem.c:2546 call_read_iter include/linux/fs.h:1851 [inline] generic_file_splice_read+0x4b4/0x800 fs/splice.c:306 do_splice_to+0x12a/0x190 fs/splice.c:876 splice_direct_to_actor+0x2d2/0x970 fs/splice.c:953 do_splice_direct+0x1da/0x2a0 fs/splice.c:1062 do_sendfile+0x597/0xd00 fs/read_write.c:1442 __do_sys_sendfile64 fs/read_write.c:1503 [inline] __se_sys_sendfile64 fs/read_write.c:1489 [inline] __x64_sys_sendfile64+0x1dd/0x220 fs/read_write.c:1489 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e29 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f284f667c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000457e29 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000102000000 R11: 0000000000000246 R12: 00007f284f6686d4 R13: 00000000004c4dce R14: 00000000004d8af8 R15: 00000000ffffffff BUG: Bad page state in process syz-executor.5 pfn:79303 page:ffffea0001e4c0c0 count:0 mapcount:0 mapping:ffff88809f229860 index:0xa shmem_aops name:"memfd:" flags: 0x1fffc000008000c(uptodate|dirty|swapbacked) raw: 01fffc000008000c ffffea0001c83e88 ffff88808636f600 ffff88809f229860 raw: 000000000000000a 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: non-NULL mapping Modules linked in: CPU: 0 PID: 21599 Comm: syz-executor.5 Tainted: G B 5.0.0-rc7-next-20190222 #41 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 bad_page.cold+0xda/0xff mm/page_alloc.c:586 free_pages_check_bad+0x142/0x1a0 mm/page_alloc.c:1013 free_pages_check mm/page_alloc.c:1022 [inline] free_pages_prepare mm/page_alloc.c:1112 [inline] free_pcp_prepare mm/page_alloc.c:1137 [inline] free_unref_page_prepare mm/page_alloc.c:3001 [inline] free_unref_page_list+0x31d/0xc40 mm/page_alloc.c:3070 release_pages+0x60d/0x1940 mm/swap.c:794 pagevec_lru_move_fn+0x218/0x2a0 mm/swap.c:213 __pagevec_lru_add mm/swap.c:920 [inline] __lru_cache_add+0x1c4/0x2d0 mm/swap.c:404 lru_cache_add_anon+0x1e2/0x360 mm/swap.c:416 shmem_getpage_gfp+0x79c/0x2500 mm/shmem.c:1872 shmem_getpage mm/shmem.c:139 [inline] shmem_file_read_iter+0x30a/0xbc0 mm/shmem.c:2546 call_read_iter include/linux/fs.h:1851 [inline] generic_file_splice_read+0x4b4/0x800 fs/splice.c:306 do_splice_to+0x12a/0x190 fs/splice.c:876 splice_direct_to_actor+0x2d2/0x970 fs/splice.c:953 do_splice_direct+0x1da/0x2a0 fs/splice.c:1062 do_sendfile+0x597/0xd00 fs/read_write.c:1442 __do_sys_sendfile64 fs/read_write.c:1503 [inline] __se_sys_sendfile64 fs/read_write.c:1489 [inline] __x64_sys_sendfile64+0x1dd/0x220 fs/read_write.c:1489 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e29 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f284f667c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000457e29 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000102000000 R11: 0000000000000246 R12: 00007f284f6686d4 R13: 00000000004c4dce R14: 00000000004d8af8 R15: 00000000ffffffff BUG: Bad page state in process syz-executor.5 pfn:720fa page:ffffea0001c83e80 count:0 mapcount:0 mapping:ffff88809f229860 index:0x9 shmem_aops name:"memfd:" flags: 0x1fffc000008000c(uptodate|dirty|swapbacked) raw: 01fffc000008000c ffff88808636f600 ffff88808636f600 ffff88809f229860 raw: 0000000000000009 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: non-NULL mapping Modules linked in: CPU: 0 PID: 21599 Comm: syz-executor.5 Tainted: G B 5.0.0-rc7-next-20190222 #41 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 bad_page.cold+0xda/0xff mm/page_alloc.c:586 free_pages_check_bad+0x142/0x1a0 mm/page_alloc.c:1013 free_pages_check mm/page_alloc.c:1022 [inline] free_pages_prepare mm/page_alloc.c:1112 [inline] free_pcp_prepare mm/page_alloc.c:1137 [inline] free_unref_page_prepare mm/page_alloc.c:3001 [inline] free_unref_page_list+0x31d/0xc40 mm/page_alloc.c:3070 release_pages+0x60d/0x1940 mm/swap.c:794 pagevec_lru_move_fn+0x218/0x2a0 mm/swap.c:213 __pagevec_lru_add mm/swap.c:920 [inline] __lru_cache_add+0x1c4/0x2d0 mm/swap.c:404 lru_cache_add_anon+0x1e2/0x360 mm/swap.c:416 shmem_getpage_gfp+0x79c/0x2500 mm/shmem.c:1872 shmem_getpage mm/shmem.c:139 [inline] shmem_file_read_iter+0x30a/0xbc0 mm/shmem.c:2546 call_read_iter include/linux/fs.h:1851 [inline] generic_file_splice_read+0x4b4/0x800 fs/splice.c:306 do_splice_to+0x12a/0x190 fs/splice.c:876 splice_direct_to_actor+0x2d2/0x970 fs/splice.c:953 do_splice_direct+0x1da/0x2a0 fs/splice.c:1062 do_sendfile+0x597/0xd00 fs/read_write.c:1442 __do_sys_sendfile64 fs/read_write.c:1503 [inline] __se_sys_sendfile64 fs/read_write.c:1489 [inline] __x64_sys_sendfile64+0x1dd/0x220 fs/read_write.c:1489 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e29 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f284f667c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000457e29 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000102000000 R11: 0000000000000246 R12: 00007f284f6686d4 R13: 00000000004c4dce R14: 00000000004d8af8 R15: 00000000ffffffff BUG: Bad page state in process syz-executor.5 pfn:78fff page:ffffea0001e3ffc0 count:0 mapcount:0 mapping:ffff88809f229860 index:0x8 shmem_aops name:"memfd:" flags: 0x1fffc000008000c(uptodate|dirty|swapbacked) raw: 01fffc000008000c ffffea0001e4c148 ffff88808636f860 ffff88809f229860 raw: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: non-NULL mapping Modules linked in: CPU: 0 PID: 21599 Comm: syz-executor.5 Tainted: G B 5.0.0-rc7-next-20190222 #41 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 bad_page.cold+0xda/0xff mm/page_alloc.c:586 free_pages_check_bad+0x142/0x1a0 mm/page_alloc.c:1013 free_pages_check mm/page_alloc.c:1022 [inline] free_pages_prepare mm/page_alloc.c:1112 [inline] free_pcp_prepare mm/page_alloc.c:1137 [inline] free_unref_page_prepare mm/page_alloc.c:3001 [inline] free_unref_page_list+0x31d/0xc40 mm/page_alloc.c:3070 release_pages+0x60d/0x1940 mm/swap.c:794 pagevec_lru_move_fn+0x218/0x2a0 mm/swap.c:213 activate_page_drain mm/swap.c:297 [inline] lru_add_drain_cpu+0x3b1/0x520 mm/swap.c:596 lru_add_drain+0x20/0x60 mm/swap.c:647 exit_mmap+0x290/0x530 mm/mmap.c:3134 __mmput kernel/fork.c:1047 [inline] mmput+0x15f/0x4c0 kernel/fork.c:1068 exit_mm kernel/exit.c:546 [inline] do_exit+0x816/0x2fa0 kernel/exit.c:863 do_group_exit+0x135/0x370 kernel/exit.c:980 get_signal+0x399/0x1d50 kernel/signal.c:2577 do_signal+0x87/0x1940 arch/x86/kernel/signal.c:816 exit_to_usermode_loop+0x244/0x2c0 arch/x86/entry/common.c:162 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x52d/0x610 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e29 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f284f667c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: 0000000000010000 RBX: 0000000000000004 RCX: 0000000000457e29 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000102000000 R11: 0000000000000246 R12: 00007f284f6686d4 R13: 00000000004c4dce R14: 00000000004d8af8 R15: 00000000ffffffff BUG: Bad page state in process syz-executor.5 pfn:79305 page:ffffea0001e4c140 count:0 mapcount:0 mapping:ffff88809f229860 index:0x7 shmem_aops name:"memfd:" flags: 0x1fffc000008000e(referenced|uptodate|dirty|swapbacked) raw: 01fffc000008000e ffffea0001def808 ffff88808636f860 ffff88809f229860 raw: 0000000000000007 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: non-NULL mapping Modules linked in: CPU: 0 PID: 21599 Comm: syz-executor.5 Tainted: G B 5.0.0-rc7-next-20190222 #41 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 bad_page.cold+0xda/0xff mm/page_alloc.c:586 free_pages_check_bad+0x142/0x1a0 mm/page_alloc.c:1013 free_pages_check mm/page_alloc.c:1022 [inline] free_pages_prepare mm/page_alloc.c:1112 [inline] free_pcp_prepare mm/page_alloc.c:1137 [inline] free_unref_page_prepare mm/page_alloc.c:3001 [inline] free_unref_page_list+0x31d/0xc40 mm/page_alloc.c:3070 release_pages+0x60d/0x1940 mm/swap.c:794 pagevec_lru_move_fn+0x218/0x2a0 mm/swap.c:213 activate_page_drain mm/swap.c:297 [inline] lru_add_drain_cpu+0x3b1/0x520 mm/swap.c:596 lru_add_drain+0x20/0x60 mm/swap.c:647 exit_mmap+0x290/0x530 mm/mmap.c:3134 __mmput kernel/fork.c:1047 [inline] mmput+0x15f/0x4c0 kernel/fork.c:1068 exit_mm kernel/exit.c:546 [inline] do_exit+0x816/0x2fa0 kernel/exit.c:863 do_group_exit+0x135/0x370 kernel/exit.c:980 get_signal+0x399/0x1d50 kernel/signal.c:2577 do_signal+0x87/0x1940 arch/x86/kernel/signal.c:816 exit_to_usermode_loop+0x244/0x2c0 arch/x86/entry/common.c:162 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x52d/0x610 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e29 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f284f667c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: 0000000000010000 RBX: 0000000000000004 RCX: 0000000000457e29 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000102000000 R11: 0000000000000246 R12: 00007f284f6686d4 R13: 00000000004c4dce R14: 00000000004d8af8 R15: 00000000ffffffff BUG: Bad page state in process syz-executor.5 pfn:77be0 page:ffffea0001def800 count:0 mapcount:0 mapping:ffff88809f229860 index:0x6 shmem_aops name:"memfd:" flags: 0x1fffc000008000c(uptodate|dirty|swapbacked) raw: 01fffc000008000c ffffea0001f87d08 ffff88808636f860 ffff88809f229860 raw: 0000000000000006 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: non-NULL mapping Modules linked in: CPU: 0 PID: 21599 Comm: syz-executor.5 Tainted: G B 5.0.0-rc7-next-20190222 #41 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 bad_page.cold+0xda/0xff mm/page_alloc.c:586 free_pages_check_bad+0x142/0x1a0 mm/page_alloc.c:1013 free_pages_check mm/page_alloc.c:1022 [inline] free_pages_prepare mm/page_alloc.c:1112 [inline] free_pcp_prepare mm/page_alloc.c:1137 [inline] free_unref_page_prepare mm/page_alloc.c:3001 [inline] free_unref_page_list+0x31d/0xc40 mm/page_alloc.c:3070 release_pages+0x60d/0x1940 mm/swap.c:794 pagevec_lru_move_fn+0x218/0x2a0 mm/swap.c:213 activate_page_drain mm/swap.c:297 [inline] lru_add_drain_cpu+0x3b1/0x520 mm/swap.c:596 lru_add_drain+0x20/0x60 mm/swap.c:647 exit_mmap+0x290/0x530 mm/mmap.c:3134 __mmput kernel/fork.c:1047 [inline] mmput+0x15f/0x4c0 kernel/fork.c:1068 exit_mm kernel/exit.c:546 [inline] do_exit+0x816/0x2fa0 kernel/exit.c:863 do_group_exit+0x135/0x370 kernel/exit.c:980 get_signal+0x399/0x1d50 kernel/signal.c:2577 do_signal+0x87/0x1940 arch/x86/kernel/signal.c:816 exit_to_usermode_loop+0x244/0x2c0 arch/x86/entry/common.c:162 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x52d/0x610 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e29 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f284f667c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: 0000000000010000 RBX: 0000000000000004 RCX: 0000000000457e29 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000102000000 R11: 0000000000000246 R12: 00007f284f6686d4 R13: 00000000004c4dce R14: 00000000004d8af8 R15: 00000000ffffffff BUG: Bad page state in process syz-executor.5 pfn:7e1f4 page:ffffea0001f87d00 count:0 mapcount:0 mapping:ffff88809f229860 index:0x5 shmem_aops name:"memfd:" flags: 0x1fffc000008000c(uptodate|dirty|swapbacked) raw: 01fffc000008000c ffffea0001f94a88 ffff88808636f860 ffff88809f229860 raw: 0000000000000005 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: non-NULL mapping Modules linked in: CPU: 0 PID: 21599 Comm: syz-executor.5 Tainted: G B 5.0.0-rc7-next-20190222 #41 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 bad_page.cold+0xda/0xff mm/page_alloc.c:586 free_pages_check_bad+0x142/0x1a0 mm/page_alloc.c:1013 free_pages_check mm/page_alloc.c:1022 [inline] free_pages_prepare mm/page_alloc.c:1112 [inline] free_pcp_prepare mm/page_alloc.c:1137 [inline] free_unref_page_prepare mm/page_alloc.c:3001 [inline] free_unref_page_list+0x31d/0xc40 mm/page_alloc.c:3070 release_pages+0x60d/0x1940 mm/swap.c:794 pagevec_lru_move_fn+0x218/0x2a0 mm/swap.c:213 activate_page_drain mm/swap.c:297 [inline] lru_add_drain_cpu+0x3b1/0x520 mm/swap.c:596 lru_add_drain+0x20/0x60 mm/swap.c:647 exit_mmap+0x290/0x530 mm/mmap.c:3134 __mmput kernel/fork.c:1047 [inline] mmput+0x15f/0x4c0 kernel/fork.c:1068 exit_mm kernel/exit.c:546 [inline] do_exit+0x816/0x2fa0 kernel/exit.c:863 do_group_exit+0x135/0x370 kernel/exit.c:980 get_signal+0x399/0x1d50 kernel/signal.c:2577 do_signal+0x87/0x1940 arch/x86/kernel/signal.c:816 exit_to_usermode_loop+0x244/0x2c0 arch/x86/entry/common.c:162 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x52d/0x610 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e29 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f284f667c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: 0000000000010000 RBX: 0000000000000004 RCX: 0000000000457e29 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000102000000 R11: 0000000000000246 R12: 00007f284f6686d4 R13: 00000000004c4dce R14: 00000000004d8af8 R15: 00000000ffffffff BUG: Bad page state in process syz-executor.5 pfn:7e52a page:ffffea0001f94a80 count:0 mapcount:0 mapping:ffff88809f229860 index:0x4 shmem_aops name:"memfd:" flags: 0x1fffc000008000c(uptodate|dirty|swapbacked) raw: 01fffc000008000c ffffea0001c82e88 ffff88808636f860 ffff88809f229860 raw: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: non-NULL mapping Modules linked in: CPU: 0 PID: 21599 Comm: syz-executor.5 Tainted: G B 5.0.0-rc7-next-20190222 #41 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 bad_page.cold+0xda/0xff mm/page_alloc.c:586 free_pages_check_bad+0x142/0x1a0 mm/page_alloc.c:1013 free_pages_check mm/page_alloc.c:1022 [inline] free_pages_prepare mm/page_alloc.c:1112 [inline] free_pcp_prepare mm/page_alloc.c:1137 [inline] free_unref_page_prepare mm/page_alloc.c:3001 [inline] free_unref_page_list+0x31d/0xc40 mm/page_alloc.c:3070 release_pages+0x60d/0x1940 mm/swap.c:794 pagevec_lru_move_fn+0x218/0x2a0 mm/swap.c:213 activate_page_drain mm/swap.c:297 [inline] lru_add_drain_cpu+0x3b1/0x520 mm/swap.c:596 lru_add_drain+0x20/0x60 mm/swap.c:647 exit_mmap+0x290/0x530 mm/mmap.c:3134 __mmput kernel/fork.c:1047 [inline] mmput+0x15f/0x4c0 kernel/fork.c:1068 exit_mm kernel/exit.c:546 [inline] do_exit+0x816/0x2fa0 kernel/exit.c:863 do_group_exit+0x135/0x370 kernel/exit.c:980 get_signal+0x399/0x1d50 kernel/signal.c:2577 do_signal+0x87/0x1940 arch/x86/kernel/signal.c:816 exit_to_usermode_loop+0x244/0x2c0 arch/x86/entry/common.c:162 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x52d/0x610 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e29 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f284f667c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: 0000000000010000 RBX: 0000000000000004 RCX: 0000000000457e29 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000102000000 R11: 0000000000000246 R12: 00007f284f6686d4 R13: 00000000004c4dce R14: 00000000004d8af8 R15: 00000000ffffffff BUG: Bad page state in process syz-executor.5 pfn:720ba page:ffffea0001c82e80 count:0 mapcount:0 mapping:ffff88809f229860 index:0x3 shmem_aops name:"memfd:" flags: 0x1fffc000008000e(referenced|uptodate|dirty|swapbacked) raw: 01fffc000008000e ffffea0001f949c8 ffff88808636f860 ffff88809f229860 raw: 0000000000000003 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: non-NULL mapping Modules linked in: CPU: 0 PID: 21599 Comm: syz-executor.5 Tainted: G B 5.0.0-rc7-next-20190222 #41 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 bad_page.cold+0xda/0xff mm/page_alloc.c:586 free_pages_check_bad+0x142/0x1a0 mm/page_alloc.c:1013 free_pages_check mm/page_alloc.c:1022 [inline] free_pages_prepare mm/page_alloc.c:1112 [inline] free_pcp_prepare mm/page_alloc.c:1137 [inline] free_unref_page_prepare mm/page_alloc.c:3001 [inline] free_unref_page_list+0x31d/0xc40 mm/page_alloc.c:3070 release_pages+0x60d/0x1940 mm/swap.c:794 pagevec_lru_move_fn+0x218/0x2a0 mm/swap.c:213 activate_page_drain mm/swap.c:297 [inline] lru_add_drain_cpu+0x3b1/0x520 mm/swap.c:596 lru_add_drain+0x20/0x60 mm/swap.c:647 exit_mmap+0x290/0x530 mm/mmap.c:3134 __mmput kernel/fork.c:1047 [inline] mmput+0x15f/0x4c0 kernel/fork.c:1068 exit_mm kernel/exit.c:546 [inline] do_exit+0x816/0x2fa0 kernel/exit.c:863 do_group_exit+0x135/0x370 kernel/exit.c:980 get_signal+0x399/0x1d50 kernel/signal.c:2577 do_signal+0x87/0x1940 arch/x86/kernel/signal.c:816 exit_to_usermode_loop+0x244/0x2c0 arch/x86/entry/common.c:162 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x52d/0x610 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e29 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f284f667c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: 0000000000010000 RBX: 0000000000000004 RCX: 0000000000457e29 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000102000000 R11: 0000000000000246 R12: 00007f284f6686d4 R13: 00000000004c4dce R14: 00000000004d8af8 R15: 00000000ffffffff BUG: Bad page state in process syz-executor.5 pfn:7e527 page:ffffea0001f949c0 count:0 mapcount:0 mapping:ffff88809f229860 index:0x2 shmem_aops name:"memfd:" flags: 0x1fffc000008000c(uptodate|dirty|swapbacked) raw: 01fffc000008000c ffffea0001ef3f88 ffff88808636f860 ffff88809f229860 raw: 0000000000000002 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: non-NULL mapping Modules linked in: CPU: 0 PID: 21599 Comm: syz-executor.5 Tainted: G B 5.0.0-rc7-next-20190222 #41 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 bad_page.cold+0xda/0xff mm/page_alloc.c:586 free_pages_check_bad+0x142/0x1a0 mm/page_alloc.c:1013 free_pages_check mm/page_alloc.c:1022 [inline] free_pages_prepare mm/page_alloc.c:1112 [inline] free_pcp_prepare mm/page_alloc.c:1137 [inline] free_unref_page_prepare mm/page_alloc.c:3001 [inline] free_unref_page_list+0x31d/0xc40 mm/page_alloc.c:3070 release_pages+0x60d/0x1940 mm/swap.c:794 pagevec_lru_move_fn+0x218/0x2a0 mm/swap.c:213 activate_page_drain mm/swap.c:297 [inline] lru_add_drain_cpu+0x3b1/0x520 mm/swap.c:596 lru_add_drain+0x20/0x60 mm/swap.c:647 exit_mmap+0x290/0x530 mm/mmap.c:3134 __mmput kernel/fork.c:1047 [inline] mmput+0x15f/0x4c0 kernel/fork.c:1068 exit_mm kernel/exit.c:546 [inline] do_exit+0x816/0x2fa0 kernel/exit.c:863 do_group_exit+0x135/0x370 kernel/exit.c:980 get_signal+0x399/0x1d50 kernel/signal.c:2577 do_signal+0x87/0x1940 arch/x86/kernel/signal.c:816 exit_to_usermode_loop+0x244/0x2c0 arch/x86/entry/common.c:162 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x52d/0x610 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e29 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f284f667c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: 0000000000010000 RBX: 0000000000000004 RCX: 0000000000457e29 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000102000000 R11: 0000000000000246 R12: 00007f284f6686d4 R13: 00000000004c4dce R14: 00000000004d8af8 R15: 00000000ffffffff BUG: Bad page state in process syz-executor.5 pfn:7bcfe page:ffffea0001ef3f80 count:0 mapcount:0 mapping:ffff88809f229860 index:0x1 shmem_aops name:"memfd:" flags: 0x1fffc000008000e(referenced|uptodate|dirty|swapbacked) raw: 01fffc000008000e ffffea0001e4d388 ffff88808636f860 ffff88809f229860 raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: non-NULL mapping Modules linked in: CPU: 0 PID: 21599 Comm: syz-executor.5 Tainted: G B 5.0.0-rc7-next-20190222 #41 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 bad_page.cold+0xda/0xff mm/page_alloc.c:586 free_pages_check_bad+0x142/0x1a0 mm/page_alloc.c:1013 free_pages_check mm/page_alloc.c:1022 [inline] free_pages_prepare mm/page_alloc.c:1112 [inline] free_pcp_prepare mm/page_alloc.c:1137 [inline] free_unref_page_prepare mm/page_alloc.c:3001 [inline] free_unref_page_list+0x31d/0xc40 mm/page_alloc.c:3070 release_pages+0x60d/0x1940 mm/swap.c:794 pagevec_lru_move_fn+0x218/0x2a0 mm/swap.c:213 activate_page_drain mm/swap.c:297 [inline] lru_add_drain_cpu+0x3b1/0x520 mm/swap.c:596 lru_add_drain+0x20/0x60 mm/swap.c:647 exit_mmap+0x290/0x530 mm/mmap.c:3134 __mmput kernel/fork.c:1047 [inline] mmput+0x15f/0x4c0 kernel/fork.c:1068 exit_mm kernel/exit.c:546 [inline] do_exit+0x816/0x2fa0 kernel/exit.c:863 do_group_exit+0x135/0x370 kernel/exit.c:980 get_signal+0x399/0x1d50 kernel/signal.c:2577 do_signal+0x87/0x1940 arch/x86/kernel/signal.c:816 exit_to_usermode_loop+0x244/0x2c0 arch/x86/entry/common.c:162 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x52d/0x610 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e29 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f284f667c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: 0000000000010000 RBX: 0000000000000004 RCX: 0000000000457e29 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000102000000 R11: 0000000000000246 R12: 00007f284f6686d4 R13: 00000000004c4dce R14: 00000000004d8af8 R15: 00000000ffffffff BUG: Bad page state in process syz-executor.5 pfn:7934e page:ffffea0001e4d380 count:0 mapcount:0 mapping:ffff88809f229860 index:0x0 shmem_aops name:"memfd:" flags: 0x1fffc000008000e(referenced|uptodate|dirty|swapbacked) raw: 01fffc000008000e ffff88808636f860 ffff88808636f860 ffff88809f229860 raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: non-NULL mapping Modules linked in: CPU: 0 PID: 21599 Comm: syz-executor.5 Tainted: G B 5.0.0-rc7-next-20190222 #41 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 bad_page.cold+0xda/0xff mm/page_alloc.c:586 free_pages_check_bad+0x142/0x1a0 mm/page_alloc.c:1013 free_pages_check mm/page_alloc.c:1022 [inline] free_pages_prepare mm/page_alloc.c:1112 [inline] free_pcp_prepare mm/page_alloc.c:1137 [inline] free_unref_page_prepare mm/page_alloc.c:3001 [inline] free_unref_page_list+0x31d/0xc40 mm/page_alloc.c:3070 release_pages+0x60d/0x1940 mm/swap.c:794 pagevec_lru_move_fn+0x218/0x2a0 mm/swap.c:213 activate_page_drain mm/swap.c:297 [inline] lru_add_drain_cpu+0x3b1/0x520 mm/swap.c:596 lru_add_drain+0x20/0x60 mm/swap.c:647 exit_mmap+0x290/0x530 mm/mmap.c:3134 __mmput kernel/fork.c:1047 [inline] mmput+0x15f/0x4c0 kernel/fork.c:1068 exit_mm kernel/exit.c:546 [inline] do_exit+0x816/0x2fa0 kernel/exit.c:863 do_group_exit+0x135/0x370 kernel/exit.c:980 get_signal+0x399/0x1d50 kernel/signal.c:2577 do_signal+0x87/0x1940 arch/x86/kernel/signal.c:816 exit_to_usermode_loop+0x244/0x2c0 arch/x86/entry/common.c:162 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x52d/0x610 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e29 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f284f667c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: 0000000000010000 RBX: 0000000000000004 RCX: 0000000000457e29 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000102000000 R11: 0000000000000246 R12: 00007f284f6686d4 R13: 00000000004c4dce R14: 00000000004d8af8 R15: 00000000ffffffff