[ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.225' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 56.553001][ T8401] loop1: detected capacity change from 0 to 256 [ 56.568487][ T8401] BTRFS: device label … devid 1912602624 transid 7 /dev/loop1 scanned by syz-executor552 (8401) [ 56.580484][ T8403] loop0: detected capacity change from 0 to 256 [ 56.591028][ T8405] loop2: detected capacity change from 0 to 256 [ 56.591251][ T8408] loop3: detected capacity change from 0 to 256 [ 56.599737][ T8400] loop5: detected capacity change from 0 to 256 [ 56.618761][ T8408] BTRFS warning: duplicate device /dev/loop3 devid 1912602624 generation 7 scanned by syz-executor552 (8408) [ 56.620771][ T8401] BTRFS error (device loop1): unsupported checksum algorithm: 256 [ 56.639120][ T8400] BTRFS warning: duplicate device /dev/loop5 devid 1912602624 generation 7 scanned by syz-executor552 (8400) [ 56.660027][ T8405] BTRFS warning: duplicate device /dev/loop2 devid 1912602624 generation 7 scanned by syz-executor552 (8405) [ 56.673248][ T8410] loop4: detected capacity change from 0 to 256 [ 56.702930][ T8403] BTRFS warning: duplicate device /dev/loop0 devid 1912602624 generation 7 scanned by syz-executor552 (8403) [ 56.716170][ T8420] loop5: detected capacity change from 0 to 32768 [ 56.728003][ T8425] loop3: detected capacity change from 0 to 32768 [ 56.728251][ T8420] syz-executor552[8420]: segfault at 0 ip 000000000043c61e sp 00007f6f53807128 error 4 in syz-executor552223633[401000+9a000] [ 56.736905][ T8410] BTRFS warning: duplicate device /dev/loop4 devid 1912602624 generation 7 scanned by syz-executor552 (8410) [ 56.750672][ T8420] Code: fd d7 c9 0f bc d1 c5 fe 7f 27 c5 fe 7f 6f 20 c5 fe 7f 77 40 c5 fe 7f 7f 60 49 83 c0 1f 49 29 d0 48 8d 7c 17 61 e9 c2 04 00 00 fe 6f 1e c5 fe 6f 56 20 c5 fd 74 cb c5 fd d7 d1 49 83 f8 21 0f [ 56.777297][ T8405] loop2: detected capacity change from 0 to 256 [ 56.799084][ T8401] BTRFS error (device loop1): open_ctree failed [ 56.807073][ T8425] syz-executor552[8425]: segfault at 0 ip 000000000043c61e sp 00007f6f53807128 error 4 in syz-executor552223633[401000+9a000] [ 56.811937][ T8405] BTRFS error (device loop2): unsupported checksum algorithm: 256 [ 56.833179][ T8405] BTRFS error (device loop2): open_ctree failed [ 56.845212][ T8425] Code: fd d7 c9 0f bc d1 c5 fe 7f 27 c5 fe 7f 6f 20 c5 fe 7f 77 40 c5 fe 7f 7f 60 49 83 c0 1f 49 29 d0 48 8d 7c 17 61 e9 c2 04 00 00 fe 6f 1e c5 fe 6f 56 20 c5 fd 74 cb c5 fd d7 d1 49 83 f8 21 0f [ 56.848544][ T8419] loop0: detected capacity change from 0 to 32768 [ 56.882427][ T8419] syz-executor552[8419]: segfault at 0 ip 000000000043c61e sp 00007f6f53807128 error 4 in syz-executor552223633[401000+9a000] [ 56.897582][ T8424] loop4: detected capacity change from 0 to 32768 [ 56.903370][ T8419] Code: fd d7 c9 0f bc d1 c5 fe 7f 27 c5 fe 7f 6f 20 c5 fe 7f 77 40 c5 fe 7f 7f 60 49 83 c0 1f 49 29 d0 48 8d 7c 17 61 e9 c2 04 00 00 fe 6f 1e c5 fe 6f 56 20 c5 fd 74 cb c5 fd d7 d1 49 83 f8 21 0f [ 56.931128][ T8424] syz-executor552[8424]: segfault at 0 ip 000000000043c61e sp 00007f6f53807128 error 4 in syz-executor552223633[401000+9a000] executing program executing program executing program executing program executing program [ 56.945739][ T8424] Code: fd d7 c9 0f bc d1 c5 fe 7f 27 c5 fe 7f 6f 20 c5 fe 7f 77 40 c5 fe 7f 7f 60 49 83 c0 1f 49 29 d0 48 8d 7c 17 61 e9 c2 04 00 00 fe 6f 1e c5 fe 6f 56 20 c5 fd 74 cb c5 fd d7 d1 49 83 f8 21 0f executing program executing program [ 57.007882][ T8447] BTRFS: device fsid f90cac8b-044b-4fa8-8bee-4b8d3da88dc2 devid 1 transid 7 /dev/loop3 scanned by systemd-udevd (8447) [ 57.009562][ T8459] loop2: detected capacity change from 0 to 256 [ 57.029243][ T8462] loop0: detected capacity change from 0 to 256 [ 57.036187][ T8457] loop5: detected capacity change from 0 to 256 [ 57.050673][ T8463] loop1: detected capacity change from 0 to 256 [ 57.082306][ T8477] loop4: detected capacity change from 0 to 256 [ 57.141169][ T8462] BTRFS warning: duplicate device /dev/loop0 devid 1912602624 generation 7 scanned by syz-executor552 (8462) [ 57.154290][ T8476] loop3: detected capacity change from 0 to 256 [ 57.161646][ T8457] BTRFS error (device loop5): unsupported checksum algorithm: 256 [ 57.171941][ T8463] BTRFS warning: duplicate device /dev/loop1 devid 1912602624 generation 7 scanned by syz-executor552 (8463) [ 57.186071][ T8477] BTRFS warning: duplicate device /dev/loop4 devid 1912602624 generation 7 scanned by syz-executor552 (8477) [ 57.201190][ T8459] BTRFS warning: duplicate device /dev/loop2 devid 1912602624 generation 7 scanned by syz-executor552 (8459) [ 57.218278][ T8462] loop0: detected capacity change from 0 to 256 [ 57.247956][ T8485] loop1: detected capacity change from 0 to 32768 [ 57.250253][ T8476] BTRFS warning: duplicate device /dev/loop3 devid 1912602624 generation 7 scanned by syz-executor552 (8476) [ 57.257055][ T8485] syz-executor552[8485]: segfault at 0 ip 000000000043c61e sp 00007f6f53807128 error 4 in syz-executor552223633[401000+9a000] [ 57.286941][ T8485] Code: fd d7 c9 0f bc d1 c5 fe 7f 27 c5 fe 7f 6f 20 c5 fe 7f 77 40 c5 fe 7f 7f 60 49 83 c0 1f 49 29 d0 48 8d 7c 17 61 e9 c2 04 00 00 fe 6f 1e c5 fe 6f 56 20 c5 fd 74 cb c5 fd d7 d1 49 83 f8 21 0f [ 57.304215][ T8477] loop4: detected capacity change from 0 to 256 [ 57.315544][ T8459] loop2: detected capacity change from 0 to 256 [ 57.329033][ T8457] BTRFS error (device loop5): open_ctree failed [ 57.350655][ T8491] loop3: detected capacity change from 0 to 32768 [ 57.365375][ T8462] BTRFS error (device loop0): unsupported checksum algorithm: 256 [ 57.379051][ T8491] syz-executor552[8491]: segfault at 0 ip 000000000043c61e sp 00007f6f53807128 error 4 in syz-executor552223633[401000+9a000] executing program [ 57.379597][ T8477] BTRFS warning: duplicate device /dev/loop4 devid 1912602624 generation 7 scanned by syz-executor552 (8477) [ 57.400615][ T8491] Code: fd d7 c9 0f bc d1 c5 fe 7f 27 c5 fe 7f 6f 20 c5 fe 7f 77 40 c5 fe 7f 7f 60 49 83 c0 1f 49 29 d0 48 8d 7c 17 61 e9 c2 04 00 00 fe 6f 1e c5 fe 6f 56 20 c5 fd 74 cb c5 fd d7 d1 49 83 f8 21 0f [ 57.429629][ T8480] loop5: detected capacity change from 0 to 32768 [ 57.439556][ T8480] syz-executor552[8480]: segfault at 0 ip 000000000043c61e sp 00007f6f53807128 error 4 in syz-executor552223633[401000+9a000] [ 57.459483][ T8480] Code: fd d7 c9 0f bc d1 c5 fe 7f 27 c5 fe 7f 6f 20 c5 fe 7f 77 40 c5 fe 7f 7f 60 49 83 c0 1f 49 29 d0 48 8d 7c 17 61 e9 c2 04 00 00 fe 6f 1e c5 fe 6f 56 20 c5 fd 74 cb c5 fd d7 d1 49 83 f8 21 0f [ 57.481413][ T8520] loop1: detected capacity change from 0 to 256 executing program [ 57.491891][ T8459] BTRFS warning: duplicate device /dev/loop2 devid 1912602624 generation 7 scanned by syz-executor552 (8459) [ 57.513440][ T8462] BTRFS error (device loop0): open_ctree failed executing program executing program executing program executing program [ 57.551251][ T8520] BTRFS error (device loop1): unsupported checksum algorithm: 256 [ 57.608577][ T8539] loop4: detected capacity change from 0 to 256 [ 57.618389][ T8539] BTRFS warning: duplicate device /dev/loop4 devid 1912602624 generation 7 scanned by syz-executor552 (8539) [ 57.629121][ T8544] loop5: detected capacity change from 0 to 256 [ 57.638135][ T8540] loop2: detected capacity change from 0 to 256 [ 57.646084][ T8541] loop0: detected capacity change from 0 to 256 [ 57.654436][ T8542] loop3: detected capacity change from 0 to 256 [ 57.667430][ T8520] BTRFS error (device loop1): open_ctree failed [ 57.677963][ T8539] loop4: detected capacity change from 0 to 32768 [ 57.694807][ T8540] BTRFS warning: duplicate device /dev/loop2 devid 1912602624 generation 7 scanned by syz-executor552 (8540) [ 57.716052][ T8544] BTRFS error (device loop5): unsupported checksum algorithm: 256 [ 57.730176][ T8539] syz-executor552[8539]: segfault at 0 ip 000000000043c61e sp 00007f6f53828128 error 4 in syz-executor552223633[401000+9a000] [ 57.753025][ T8542] BTRFS warning: duplicate device /dev/loop3 devid 1912602624 generation 7 scanned by syz-executor552 (8542) [ 57.769287][ T8539] Code: fd d7 c9 0f bc d1 c5 fe 7f 27 c5 fe 7f 6f 20 c5 fe 7f 77 40 c5 fe 7f 7f 60 49 83 c0 1f 49 29 d0 48 8d 7c 17 61 e9 c2 04 00 00 fe 6f 1e c5 fe 6f 56 20 c5 fd 74 cb c5 fd d7 d1 49 83 f8 21 0f [ 57.795769][ T8541] BTRFS warning: duplicate device /dev/loop0 devid 1912602624 generation 7 scanned by syz-executor552 (8541) executing program [ 57.816604][ T8544] BTRFS error (device loop5): open_ctree failed [ 57.835280][ T8556] loop2: detected capacity change from 0 to 32768 [ 57.842721][ T8556] syz-executor552[8556]: segfault at 0 ip 000000000043c61e sp 00007f6f53807128 error 4 in syz-executor552223633[401000+9a000] executing program [ 57.866102][ T8541] loop0: detected capacity change from 0 to 256 [ 57.869915][ T8556] Code: fd d7 c9 0f bc d1 c5 fe 7f 27 c5 fe 7f 6f 20 c5 fe 7f 77 40 c5 fe 7f 7f 60 49 83 c0 1f 49 29 d0 48 8d 7c 17 61 e9 c2 04 00 00 fe 6f 1e c5 fe 6f 56 20 c5 fd 74 cb c5 fd d7 d1 49 83 f8 21 0f [ 57.875042][ T8542] loop3: detected capacity change from 0 to 256 [ 57.906958][ T8579] loop1: detected capacity change from 0 to 256 [ 57.914122][ T8560] loop5: detected capacity change from 0 to 32768 [ 57.920927][ T8560] syz-executor552[8560]: segfault at 0 ip 000000000043c61e sp 00007f6f53807128 error 4 in syz-executor552223633[401000+9a000] [ 57.936651][ T8560] Code: fd d7 c9 0f bc d1 c5 fe 7f 27 c5 fe 7f 6f 20 c5 fe 7f 77 40 c5 fe 7f 7f 60 49 83 c0 1f 49 29 d0 48 8d 7c 17 61 e9 c2 04 00 00 fe 6f 1e c5 fe 6f 56 20 c5 fd 74 cb c5 fd d7 d1 49 83 f8 21 0f [ 57.945569][ T8586] loop4: detected capacity change from 0 to 256 [ 57.966435][ T8586] BTRFS warning: duplicate device /dev/loop4 devid 1912602624 generation 7 scanned by syz-executor552 (8586) [ 57.966567][ T8542] BTRFS error (device loop3): unsupported checksum algorithm: 256 [ 57.994810][ T8541] BTRFS warning: duplicate device /dev/loop0 devid 1912602624 generation 7 scanned by syz-executor552 (8541) executing program executing program [ 58.030437][ T8579] BTRFS warning: duplicate device /dev/loop1 devid 1912602624 generation 7 scanned by syz-executor552 (8579) [ 58.045278][ T8597] loop4: detected capacity change from 0 to 32768 [ 58.054997][ T8542] BTRFS error (device loop3): open_ctree failed [ 58.063160][ T8601] loop5: detected capacity change from 0 to 256 [ 58.079540][ T8603] loop2: detected capacity change from 0 to 256 [ 58.110271][ T8603] BTRFS warning: duplicate device /dev/loop2 devid 1912602624 generation 7 scanned by syz-executor552 (8603) executing program executing program [ 58.130334][ T8601] BTRFS error (device loop5): unsupported checksum algorithm: 256 [ 58.144384][ T8579] loop1: detected capacity change from 0 to 256 executing program [ 58.172769][ T8601] BTRFS error (device loop5): open_ctree failed [ 58.179966][ T8618] loop0: detected capacity change from 0 to 256 [ 58.209806][ T8623] loop3: detected capacity change from 0 to 256 executing program [ 58.239241][ T8628] loop4: detected capacity change from 0 to 256 [ 58.266997][ T8618] BTRFS error (device loop0): unsupported checksum algorithm: 256 [ 58.280102][ T8601] loop5: detected capacity change from 0 to 256 [ 58.296937][ T8579] BTRFS warning: duplicate device /dev/loop1 devid 1912602624 generation 7 scanned by syz-executor552 (8579) [ 58.300710][ T8640] loop2: detected capacity change from 0 to 256 [ 58.318790][ T8623] BTRFS warning: duplicate device /dev/loop3 devid 1912602624 generation 7 scanned by syz-executor552 (8623) [ 58.332601][ T8628] BTRFS warning: duplicate device /dev/loop4 devid 1912602624 generation 7 scanned by syz-executor552 (8628) [ 58.347361][ T8618] BTRFS error (device loop0): open_ctree failed executing program [ 58.391588][ T8601] BTRFS error (device loop5): unsupported checksum algorithm: 256 [ 58.400081][ T8641] loop3: detected capacity change from 0 to 32768 [ 58.409546][ T8640] BTRFS warning: duplicate device /dev/loop2 devid 1912602624 generation 7 scanned by syz-executor552 (8640) [ 58.424665][ T8628] loop4: detected capacity change from 0 to 256 [ 58.435124][ T8618] loop0: detected capacity change from 0 to 256 executing program [ 58.450959][ T8661] loop1: detected capacity change from 0 to 256 [ 58.458271][ T8601] BTRFS error (device loop5): open_ctree failed [ 58.471166][ T8618] BTRFS warning: duplicate device /dev/loop0 devid 1912602624 generation 7 scanned by syz-executor552 (8618) [ 58.490190][ T8667] loop3: detected capacity change from 0 to 256 [ 58.497836][ T8661] BTRFS error (device loop1): unsupported checksum algorithm: 256 [ 58.506729][ T8628] BTRFS warning: duplicate device /dev/loop4 devid 1912602624 generation 7 scanned by syz-executor552 (8628) [ 58.534529][ T8648] loop2: detected capacity change from 0 to 32768 executing program executing program [ 58.599214][ T8667] BTRFS warning: duplicate device /dev/loop3 devid 1912602624 generation 7 scanned by syz-executor552 (8667) [ 58.630448][ T8661] BTRFS error (device loop1): open_ctree failed executing program executing program executing program [ 58.687489][ T8678] loop3: detected capacity change from 0 to 32768 [ 58.701565][ T8691] loop0: detected capacity change from 0 to 256 [ 58.706191][ T8682] loop5: detected capacity change from 0 to 256 [ 58.718901][ T8686] loop4: detected capacity change from 0 to 256 executing program executing program [ 58.738780][ T8703] loop1: detected capacity change from 0 to 256 [ 58.758821][ T8691] BTRFS info (device loop2): disk space caching is enabled [ 58.760800][ T8703] BTRFS warning: duplicate device /dev/loop1 devid 1912602624 generation 7 scanned by syz-executor552 (8703) [ 58.770235][ T8691] BTRFS info (device loop2): has skinny extents executing program [ 58.793962][ T8686] BTRFS warning: duplicate device /dev/loop4 devid 1912602624 generation 7 scanned by syz-executor552 (8686) [ 58.826390][ T8714] loop3: detected capacity change from 0 to 256 executing program [ 58.838843][ T8682] BTRFS warning: duplicate device /dev/loop5 devid 1912602624 generation 7 scanned by syz-executor552 (8682) [ 58.858200][ T8703] loop1: detected capacity change from 0 to 32768 [ 58.879882][ T8714] BTRFS warning: duplicate device /dev/loop3 devid 1912602624 generation 7 scanned by syz-executor552 (8714) [ 58.901282][ T8686] loop4: detected capacity change from 0 to 256 [ 58.916259][ T8686] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 7 scanned by syz-executor552 (8686) [ 58.937946][ T8697] loop5: detected capacity change from 0 to 32768 executing program executing program [ 58.950082][ T8691] BTRFS error (device loop2): super_num_devices 1 mismatch with num_devices 1 found here [ 58.970455][ T8691] BTRFS error (device loop2): failed to read chunk tree: -22 executing program executing program [ 59.003745][ T8740] loop3: detected capacity change from 0 to 32768 [ 59.018881][ T8764] loop5: detected capacity change from 0 to 256 [ 59.029806][ T8765] loop1: detected capacity change from 0 to 256 [ 59.038758][ T8764] BTRFS warning: duplicate device /dev/loop5 devid 1912602624 generation 7 scanned by syz-executor552 (8764) executing program executing program [ 59.058195][ T8774] loop4: detected capacity change from 0 to 256 [ 59.093425][ T8786] loop3: detected capacity change from 0 to 256 [ 59.113816][ T8789] loop5: detected capacity change from 0 to 32768 [ 59.128072][ T8691] BTRFS error (device loop2): open_ctree failed [ 59.128462][ T8784] loop2: detected capacity change from 0 to 256 [ 59.146856][ T8774] BTRFS warning: duplicate device /dev/loop4 devid 1912602624 generation 7 scanned by syz-executor552 (8774) [ 59.160470][ T8765] BTRFS error (device loop1): unsupported checksum algorithm: 256 [ 59.183495][ T8786] BTRFS warning: duplicate device /dev/loop3 devid 1912602624 generation 7 scanned by syz-executor552 (8786) [ 59.199108][ T8784] BTRFS warning: duplicate device /dev/loop2 devid 1912602624 generation 7 scanned by syz-executor552 (8784) executing program executing program [ 59.236690][ T8765] BTRFS error (device loop1): open_ctree failed [ 59.260530][ T8810] loop0: detected capacity change from 0 to 256 [ 59.272607][ T8798] loop4: detected capacity change from 0 to 32768 executing program executing program [ 59.309371][ T8794] loop1: detected capacity change from 0 to 32768 [ 59.344727][ T8786] loop3: detected capacity change from 0 to 256 [ 59.379481][ T8810] BTRFS error (device loop0): unsupported checksum algorithm: 256 [ 59.380058][ T8786] BTRFS warning: duplicate device /dev/loop3 devid 1912602624 generation 7 scanned by syz-executor552 (8786) [ 59.404854][ T8829] loop2: detected capacity change from 0 to 256 [ 59.415272][ T8829] BTRFS warning: duplicate device /dev/loop2 devid 1912602624 generation 7 scanned by syz-executor552 (8829) executing program executing program [ 59.433557][ T8824] loop4: detected capacity change from 0 to 256 [ 59.448036][ T8810] BTRFS error (device loop0): open_ctree failed executing program executing program [ 59.478839][ T8839] loop2: detected capacity change from 0 to 32768 [ 59.497690][ T8827] loop0: detected capacity change from 0 to 32768 [ 59.503351][ T8845] loop1: detected capacity change from 0 to 256 [ 59.528128][ T8845] BTRFS warning: duplicate device /dev/loop1 devid 1912602624 generation 7 scanned by syz-executor552 (8845) [ 59.551738][ T8853] loop3: detected capacity change from 0 to 256 [ 59.567347][ T8850] loop5: detected capacity change from 0 to 256 executing program [ 59.575885][ T8824] BTRFS error (device loop4): unsupported checksum algorithm: 256 executing program [ 59.601992][ T8850] BTRFS warning: duplicate device /dev/loop5 devid 1912602624 generation 7 scanned by syz-executor552 (8850) [ 59.619552][ T8871] loop0: detected capacity change from 0 to 256 [ 59.636237][ T8824] BTRFS error (device loop4): open_ctree failed [ 59.646312][ T8879] loop2: detected capacity change from 0 to 256 [ 59.650148][ T8871] BTRFS warning: duplicate device /dev/loop0 devid 1912602624 generation 7 scanned by syz-executor552 (8871) [ 59.674447][ T8864] loop1: detected capacity change from 0 to 32768 [ 59.683987][ T8853] BTRFS error (device loop3): unsupported checksum algorithm: 256 [ 59.707576][ T8879] BTRFS warning: duplicate device /dev/loop2 devid 1912602624 generation 7 scanned by syz-executor552 (8879) [ 59.724684][ T8853] BTRFS error (device loop3): open_ctree failed executing program executing program [ 59.764824][ T8891] loop2: detected capacity change from 0 to 32768 [ 59.765369][ T8887] loop0: detected capacity change from 0 to 32768 [ 59.779446][ T8868] loop5: detected capacity change from 0 to 32768 [ 59.790279][ T8870] loop3: detected capacity change from 0 to 32768 [ 59.802435][ T8904] loop4: detected capacity change from 0 to 256 [ 59.811777][ T8905] loop1: detected capacity change from 0 to 256 executing program executing program executing program [ 59.910998][ T8904] BTRFS warning: duplicate device /dev/loop4 devid 1912602624 generation 7 scanned by syz-executor552 (8904) [ 59.923970][ T8905] BTRFS error (device loop1): unsupported checksum algorithm: 256 [ 59.932279][ T8919] loop2: detected capacity change from 0 to 256 [ 59.947250][ T8919] BTRFS warning: duplicate device /dev/loop2 devid 1912602624 generation 7 scanned by syz-executor552 (8919) executing program [ 59.948502][ T8927] loop5: detected capacity change from 0 to 256 [ 59.969925][ T8930] loop3: detected capacity change from 0 to 256 [ 59.978894][ T8905] BTRFS error (device loop1): open_ctree failed [ 59.993704][ T8930] BTRFS warning: duplicate device /dev/loop3 devid 1912602624 generation 7 scanned by syz-executor552 (8930) [ 60.000519][ T8936] loop0: detected capacity change from 0 to 256 [ 60.006390][ T8904] loop4: detected capacity change from 0 to 256 [ 60.013242][ T8927] BTRFS error (device loop5): unsupported checksum algorithm: 256 [ 60.028577][ T8904] BTRFS warning: duplicate device /dev/loop4 devid 1912602624 generation 7 scanned by syz-executor552 (8904) [ 60.046099][ T8905] loop1: detected capacity change from 0 to 256 [ 60.059548][ T8919] loop2: detected capacity change from 0 to 256 [ 60.069082][ T8936] BTRFS warning: duplicate device /dev/loop0 devid 1912602624 generation 7 scanned by syz-executor552 (8936) [ 60.085048][ T8949] loop3: detected capacity change from 0 to 32768 [ 60.085187][ T8927] BTRFS error (device loop5): open_ctree failed executing program [ 60.140492][ T8905] BTRFS error (device loop1): unsupported checksum algorithm: 256 [ 60.150301][ T8957] loop0: detected capacity change from 0 to 32768 [ 60.160388][ T8905] BTRFS error (device loop1): open_ctree failed [ 60.172216][ T8927] loop5: detected capacity change from 0 to 256 [ 60.173918][ T8967] loop4: detected capacity change from 0 to 256 executing program executing program [ 60.186964][ T8919] BTRFS error (device loop1): unsupported checksum algorithm: 256 [ 60.197904][ T8967] BTRFS warning: duplicate device /dev/loop4 devid 1912602624 generation 7 scanned by syz-executor552 (8967) executing program [ 60.257046][ T8981] loop3: detected capacity change from 0 to 256 [ 60.263867][ T8927] BTRFS warning: duplicate device /dev/loop5 devid 1912602624 generation 7 scanned by syz-executor552 (8927) [ 60.287161][ T8982] loop4: detected capacity change from 0 to 32768 [ 60.300298][ T8990] loop0: detected capacity change from 0 to 256 executing program executing program executing program executing program [ 60.344548][ T8919] BTRFS error (device loop1): open_ctree failed [ 60.352658][ T8997] loop1: detected capacity change from 0 to 256 [ 60.356448][ T8981] BTRFS error (device loop2): superblock checksum mismatch [ 60.360511][ T8997] BTRFS warning: duplicate device /dev/loop1 devid 1912602624 generation 7 scanned by syz-executor552 (8997) [ 60.381192][ T8990] BTRFS warning: duplicate device /dev/loop0 devid 1912602624 generation 7 scanned by syz-executor552 (8990) [ 60.412361][ T9010] loop4: detected capacity change from 0 to 256 [ 60.425810][ T8981] BTRFS error (device loop2): open_ctree failed [ 60.434930][ T9013] loop5: detected capacity change from 0 to 256 [ 60.488638][ T9018] loop1: detected capacity change from 0 to 32768 [ 60.509480][ T8995] loop3: detected capacity change from 0 to 256 [ 60.520885][ T9013] BTRFS warning: duplicate device /dev/loop5 devid 1912602624 generation 7 scanned by syz-executor552 (9013) executing program [ 60.541644][ T9010] BTRFS error (device loop4): unsupported checksum algorithm: 256 [ 60.558069][ T9008] loop2: detected capacity change from 0 to 256 [ 60.567832][ T8990] loop0: detected capacity change from 0 to 256 [ 60.599224][ T8995] BTRFS warning: duplicate device /dev/loop3 devid 1912602624 generation 7 scanned by syz-executor552 (8995) executing program [ 60.638792][ T9008] BTRFS warning: duplicate device /dev/loop2 devid 1912602624 generation 7 scanned by syz-executor552 (9008) [ 60.666592][ T8990] BTRFS warning: duplicate device /dev/loop0 devid 1912602624 generation 7 scanned by syz-executor552 (8990) [ 60.689630][ T9010] BTRFS error (device loop4): open_ctree failed executing program executing program [ 60.699820][ T9032] loop5: detected capacity change from 0 to 32768 [ 60.732295][ T9040] loop3: detected capacity change from 0 to 256 executing program executing program [ 60.781441][ T9028] loop4: detected capacity change from 0 to 256 [ 60.829017][ T9054] loop0: detected capacity change from 0 to 256 [ 60.843691][ T9049] loop1: detected capacity change from 0 to 256 [ 60.851213][ T9040] BTRFS error (device loop3): unsupported checksum algorithm: 256 executing program [ 60.891391][ T9028] BTRFS warning: duplicate device /dev/loop4 devid 1912602624 generation 7 scanned by syz-executor552 (9028) [ 60.930032][ T9069] loop2: detected capacity change from 0 to 256 [ 60.969678][ T9040] BTRFS error (device loop3): open_ctree failed [ 60.980785][ T9049] BTRFS warning: duplicate device /dev/loop1 devid 1912602624 generation 7 scanned by syz-executor552 (9049) [ 61.009320][ T9054] BTRFS error (device loop0): unsupported checksum algorithm: 256 executing program executing program [ 61.053952][ T9069] BTRFS warning: duplicate device /dev/loop2 devid 1912602624 generation 7 scanned by syz-executor552 (9069) [ 61.088025][ T9054] BTRFS error (device loop0): open_ctree failed executing program executing program executing program [ 61.100583][ T9091] loop4: detected capacity change from 0 to 256 [ 61.121672][ T9079] loop2: detected capacity change from 0 to 32768 [ 61.148432][ T9095] loop5: detected capacity change from 0 to 256 [ 61.168068][ T9098] loop3: detected capacity change from 0 to 256 [ 61.181715][ T9103] loop1: detected capacity change from 0 to 256 [ 61.184943][ T9091] BTRFS error (device loop4): unsupported checksum algorithm: 256 executing program [ 61.195875][ T9098] BTRFS warning: duplicate device /dev/loop3 devid 1912602624 generation 7 scanned by syz-executor552 (9098) [ 61.203098][ T9110] loop0: detected capacity change from 0 to 256 [ 61.221602][ T9095] BTRFS warning: duplicate device /dev/loop5 devid 1912602624 generation 7 scanned by syz-executor552 (9095) [ 61.233842][ T9125] loop2: detected capacity change from 0 to 256 [ 61.242600][ T9103] BTRFS warning: duplicate device /dev/loop1 devid 1912602624 generation 7 scanned by syz-executor552 (9103) [ 61.258420][ T9110] BTRFS warning: duplicate device /dev/loop0 devid 1912602624 generation 7 scanned by syz-executor552 (9110) [ 61.271658][ T9091] BTRFS error (device loop4): open_ctree failed [ 61.281798][ T9120] loop3: detected capacity change from 0 to 32768 [ 61.294483][ T9095] loop5: detected capacity change from 0 to 256 executing program [ 61.319642][ T9112] loop4: detected capacity change from 0 to 32768 [ 61.328410][ T9129] loop0: detected capacity change from 0 to 32768 [ 61.339418][ T9103] loop1: detected capacity change from 0 to 256 [ 61.349935][ T9125] BTRFS error (device loop5): superblock checksum mismatch [ 61.358582][ T9103] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 7 scanned by syz-executor552 (9103) executing program executing program executing program executing program [ 61.370976][ T9151] loop3: detected capacity change from 0 to 256 [ 61.380125][ T9125] BTRFS error (device loop5): open_ctree failed [ 61.393622][ T9095] BTRFS error (device loop5): superblock checksum mismatch [ 61.402636][ T9151] BTRFS warning: duplicate device /dev/loop3 devid 1912602624 generation 7 scanned by syz-executor552 (9151) [ 61.446571][ T9164] loop4: detected capacity change from 0 to 256 [ 61.454016][ T9162] loop0: detected capacity change from 0 to 256 [ 61.464460][ T9095] BTRFS error (device loop5): open_ctree failed [ 61.484744][ T9169] loop1: detected capacity change from 0 to 256 executing program [ 61.519134][ T9162] BTRFS error (device loop0): unsupported checksum algorithm: 256 [ 61.523558][ T9167] loop2: detected capacity change from 0 to 32768 [ 61.528858][ T9172] loop3: detected capacity change from 0 to 32768 [ 61.553759][ T9164] BTRFS warning: duplicate device /dev/loop4 devid 1912602624 generation 7 scanned by syz-executor552 (9164) executing program [ 61.571881][ T9169] BTRFS warning: duplicate device /dev/loop1 devid 1912602624 generation 7 scanned by syz-executor552 (9169) [ 61.587272][ T9162] BTRFS error (device loop0): open_ctree failed [ 61.587909][ T9191] loop5: detected capacity change from 0 to 256 [ 61.610183][ T9191] BTRFS error (device loop5): unsupported checksum algorithm: 256 executing program [ 61.624445][ T9191] BTRFS error (device loop5): open_ctree failed [ 61.639187][ T9185] loop4: detected capacity change from 0 to 32768 [ 61.646895][ T9188] loop1: detected capacity change from 0 to 32768 [ 61.659492][ T9199] loop2: detected capacity change from 0 to 256 [ 61.672496][ T9187] loop0: detected capacity change from 0 to 32768 executing program executing program [ 61.726705][ T9211] loop5: detected capacity change from 0 to 32768 [ 61.735872][ T9212] loop3: detected capacity change from 0 to 256 [ 61.749902][ T9211] show_signal_msg: 31 callbacks suppressed [ 61.749916][ T9211] syz-executor552[9211]: segfault at 0 ip 000000000043c61e sp 00007f6f53807128 error 4 executing program [ 61.763677][ T9199] BTRFS info (device loop5): disk space caching is enabled [ 61.783912][ T9212] BTRFS warning: duplicate device /dev/loop3 devid 1912602624 generation 7 scanned by syz-executor552 (9212) [ 61.804999][ T9228] loop1: detected capacity change from 0 to 256 [ 61.814928][ T9236] loop0: detected capacity change from 0 to 256 [ 61.816139][ T9211] in syz-executor552223633[401000+9a000] [ 61.827294][ T9199] BTRFS info (device loop5): has skinny extents [ 61.843448][ T9236] BTRFS warning: duplicate device /dev/loop0 devid 1912602624 generation 7 scanned by syz-executor552 (9236) [ 61.858636][ T9211] [ 61.859628][ T9231] loop4: detected capacity change from 0 to 256 executing program [ 61.861153][ T9211] Code: fd d7 c9 0f bc d1 c5 fe 7f 27 c5 fe 7f 6f 20 c5 fe 7f 77 40 c5 fe 7f 7f 60 49 83 c0 1f 49 29 d0 48 8d 7c 17 61 e9 c2 04 00 00 fe 6f 1e c5 fe 6f 56 20 c5 fd 74 cb c5 fd d7 d1 49 83 f8 21 0f [ 61.869220][ T9228] BTRFS warning: duplicate device /dev/loop1 devid 1912602624 generation 7 scanned by syz-executor552 (9228) [ 61.935575][ T9249] loop0: detected capacity change from 0 to 32768 [ 61.946308][ T9231] BTRFS warning: duplicate device /dev/loop4 devid 1912602624 generation 7 scanned by syz-executor552 (9231) [ 61.960765][ T9234] loop3: detected capacity change from 0 to 32768 [ 61.971262][ T9249] syz-executor552[9249]: segfault at 0 ip 000000000043c61e sp 00007f6f53807128 error 4 in syz-executor552223633[401000+9a000] [ 62.014267][ T9228] loop1: detected capacity change from 0 to 256 [ 62.041541][ T9234] syz-executor552[9234]: segfault at 0 ip 000000000043c61e sp 00007f6f53807128 error 4 in syz-executor552223633[401000+9a000] executing program [ 62.122803][ T9199] BTRFS error (device loop5): super_num_devices 1 mismatch with num_devices 1 found here [ 62.161477][ T9199] BTRFS error (device loop5): failed to read chunk tree: -22 [ 62.165141][ T9249] Code: fd d7 c9 0f bc d1 c5 fe 7f 27 c5 fe 7f 6f 20 c5 fe 7f 77 40 c5 fe 7f 7f 60 49 83 c0 1f 49 29 d0 48 8d 7c 17 61 e9 c2 04 00 00 fe 6f 1e c5 fe 6f 56 20 c5 fd 74 cb c5 fd d7 d1 49 83 f8 21 0f [ 62.177801][ T9234] Code: fd d7 c9 0f bc d1 c5 fe 7f 27 c5 fe 7f 6f 20 c5 fe 7f 77 40 c5 fe 7f 7f 60 49 83 c0 1f 49 29 d0 48 8d 7c 17 61 e9 c2 04 00 00 fe 6f 1e c5 fe 6f 56 20 c5 fd 74 cb c5 fd d7 d1 49 83 f8 21 0f executing program executing program executing program [ 62.225716][ T9228] BTRFS warning: duplicate device /dev/loop1 devid 1912602624 generation 7 scanned by syz-executor552 (9228) [ 62.237943][ T9243] loop4: detected capacity change from 0 to 256 executing program [ 62.279249][ T8509] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 7 scanned by systemd-udevd (8509) [ 62.303404][ T8496] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 7 scanned by systemd-udevd (8496) executing program executing program executing program [ 62.356694][ T9293] loop1: detected capacity change from 0 to 256 [ 62.425941][ T9318] loop5: detected capacity change from 0 to 256 [ 62.474185][ T9199] BTRFS error (device loop5): open_ctree failed [ 62.482208][ T9293] BTRFS warning: duplicate device /dev/loop1 devid 1912602624 generation 7 scanned by syz-executor552 (9293) [ 62.499563][ T9243] BTRFS error (device loop4): unsupported checksum algorithm: 256 [ 62.504122][ T9319] loop0: detected capacity change from 0 to 32768 [ 62.517458][ T9319] syz-executor552[9319]: segfault at 0 ip 000000000043c61e sp 00007f6f53807128 error 4 in syz-executor552223633[401000+9a000] [ 62.520973][ T9317] loop3: detected capacity change from 0 to 256 [ 62.551936][ T9318] BTRFS warning: duplicate device /dev/loop5 devid 1912602624 generation 7 scanned by syz-executor552 (9318) [ 62.558942][ T9319] Code: fd d7 c9 0f bc d1 c5 fe 7f 27 c5 fe 7f 6f 20 c5 fe 7f 77 40 c5 fe 7f 7f 60 49 83 c0 1f 49 29 d0 48 8d 7c 17 61 e9 c2 04 00 00 fe 6f 1e c5 fe 6f 56 20 c5 fd 74 cb c5 fd d7 d1 49 83 f8 21 0f [ 62.591402][ T9243] BTRFS error (device loop4): open_ctree failed executing program executing program [ 62.614926][ T9293] loop1: detected capacity change from 0 to 256 [ 62.650089][ T9317] BTRFS error (device loop3): unsupported checksum algorithm: 256 executing program [ 62.684985][ T9335] loop5: detected capacity change from 0 to 32768 [ 62.709026][ T9335] syz-executor552[9335]: segfault at 0 ip 000000000043c61e sp 00007f6f53807128 error 4 in syz-executor552223633[401000+9a000] [ 62.728221][ T9293] BTRFS warning: duplicate device /dev/loop1 devid 1912602624 generation 7 scanned by syz-executor552 (9293) [ 62.749802][ T9317] BTRFS error (device loop3): open_ctree failed [ 62.757153][ T9335] Code: fd d7 c9 0f bc d1 c5 fe 7f 27 c5 fe 7f 6f 20 c5 fe 7f 77 40 c5 fe 7f 7f 60 49 83 c0 1f 49 29 d0 48 8d 7c 17 61 e9 c2 04 00 00 fe 6f 1e c5 fe 6f 56 20 c5 fd 74 cb c5 fd d7 d1 49 83 f8 21 0f [ 62.760494][ T9351] loop2: detected capacity change from 0 to 256 executing program executing program executing program [ 62.786892][ T9355] loop4: detected capacity change from 0 to 256 [ 62.825139][ T9355] BTRFS info (device loop0): disk space caching is enabled [ 62.837938][ T9355] BTRFS info (device loop0): has skinny extents [ 62.854627][ T9334] loop3: detected capacity change from 0 to 256 [ 62.864152][ T9371] loop1: detected capacity change from 0 to 256 [ 62.876241][ T9372] loop5: detected capacity change from 0 to 256 [ 62.908753][ T9351] BTRFS warning: duplicate device /dev/loop2 devid 1912602624 generation 7 scanned by syz-executor552 (9351) executing program [ 62.978601][ T9334] BTRFS warning: duplicate device /dev/loop3 devid 1912602624 generation 7 scanned by syz-executor552 (9334) [ 63.011628][ T9371] BTRFS warning: duplicate device /dev/loop1 devid 1912602624 generation 7 scanned by syz-executor552 (9371) [ 63.043744][ T9372] BTRFS warning: duplicate device /dev/loop5 devid 1912602624 generation 7 scanned by syz-executor552 (9372) [ 63.079604][ T9351] loop2: detected capacity change from 0 to 256 executing program executing program [ 63.130027][ T9398] loop1: detected capacity change from 0 to 256 [ 63.167078][ T9] BTRFS error (device loop0): bad tree block start, want 5242880 have 0 executing program executing program executing program [ 63.251535][ T9355] BTRFS warning (device loop0): couldn't read tree root [ 63.291214][ T9418] loop3: detected capacity change from 0 to 256 executing program [ 63.337193][ T9422] loop5: detected capacity change from 0 to 256 [ 63.350326][ T9424] loop1: detected capacity change from 0 to 256 [ 63.358986][ T9430] loop2: detected capacity change from 0 to 32768 [ 63.367533][ T9430] syz-executor552[9430]: segfault at 0 ip 000000000043c61e sp 00007f6f53807128 error 4 in syz-executor552223633[401000+9a000] [ 63.382877][ T9430] Code: fd d7 c9 0f bc d1 c5 fe 7f 27 c5 fe 7f 6f 20 c5 fe 7f 77 40 c5 fe 7f 7f 60 49 83 c0 1f 49 29 d0 48 8d 7c 17 61 e9 c2 04 00 00 fe 6f 1e c5 fe 6f 56 20 c5 fd 74 cb c5 fd d7 d1 49 83 f8 21 0f [ 63.389924][ T9355] ------------[ cut here ]------------ [ 63.423882][ T9355] WARNING: CPU: 1 PID: 9355 at fs/btrfs/volumes.c:1168 close_fs_devices+0x763/0x880 executing program [ 63.426801][ T9444] loop0: detected capacity change from 0 to 256 [ 63.434215][ T9418] loop3: detected capacity change from 0 to 256 [ 63.446445][ T9355] Modules linked in: [ 63.459937][ T9355] CPU: 0 PID: 9355 Comm: syz-executor552 Not tainted 5.13.0-rc1-syzkaller #0 [ 63.472920][ T9355] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.486160][ T9355] RIP: 0010:close_fs_devices+0x763/0x880 [ 63.494764][ T9355] Code: c4 38 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 85 0d 19 fe 0f 0b e9 29 f9 ff ff e8 79 0d 19 fe 0f 0b e9 3c ff ff ff e8 6d 0d 19 fe <0f> 0b e9 69 ff ff ff 48 c7 c1 14 45 38 8e 80 e1 07 80 c1 03 38 c1 [ 63.519341][ T9355] RSP: 0018:ffffc9000333f2f0 EFLAGS: 00010293 [ 63.528291][ T9355] RAX: ffffffff8365f5c3 RBX: 0000000000000001 RCX: ffff888029afd4c0 executing program [ 63.538972][ T9355] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 63.550141][ T9355] RBP: ffff88802846f508 R08: ffffffff8365f525 R09: ffffed100337d128 [ 63.559514][ T9355] R10: ffffed100337d128 R11: 0000000000000000 R12: dffffc0000000000 [ 63.568578][ T9355] R13: ffff888019be8868 R14: 1ffff1100337d10d R15: 1ffff1100337d10a [ 63.577411][ T9355] FS: 00007f6f53828700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 executing program [ 63.588355][ T9355] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 63.596386][ T9355] CR2: 000000000047c410 CR3: 00000000302a6000 CR4: 00000000001506f0 [ 63.607848][ T9355] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 63.620019][ T9355] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 63.634296][ T9355] Call Trace: executing program [ 63.643472][ T9355] btrfs_close_devices+0xc9/0x450 [ 63.651012][ T9355] ? rcu_force_quiescent_state+0x240/0x240 [ 63.661611][ T9355] ? __btrfs_free_extra_devids+0x6c0/0x6c0 [ 63.671297][ T9355] open_ctree+0x8e1/0x3968 [ 63.679025][ T9355] ? btrfs_cleanup_fs_roots+0xa18/0xa18 [ 63.686649][ T9355] ? rcu_read_lock_sched_held+0x87/0x110 [ 63.694031][ T9355] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 63.700370][ T9355] ? bdi_register_va+0x4dd/0x530 [ 63.707382][ T9355] ? do_raw_spin_unlock+0x134/0x8a0 [ 63.714104][ T9355] ? trace_writeback_bdi_register+0x133/0x260 [ 63.720510][ T9355] ? bdi_register_va+0x4e5/0x530 [ 63.727261][ T9355] ? super_setup_bdi_name+0x144/0x1b0 [ 63.734418][ T9355] ? __up_read+0x790/0x790 [ 63.739393][ T9355] ? vfs_get_tree+0x270/0x270 executing program [ 63.746132][ T9355] ? sget+0x4d0/0x4f0 [ 63.750446][ T9355] btrfs_mount_root+0xac5/0xc60 [ 63.757630][ T9355] ? btrfs_control_open+0x40/0x40 [ 63.763893][ T9355] ? vfs_parse_fs_param+0x2d3/0x460 [ 63.769134][ T9355] ? vfs_parse_fs_string+0x1ca/0x280 [ 63.776565][ T9355] ? logfc+0x520/0x520 [ 63.780864][ T9355] legacy_get_tree+0xea/0x180 [ 63.789204][ T9355] ? btrfs_control_open+0x40/0x40 executing program [ 63.795912][ T9355] vfs_get_tree+0x86/0x270 [ 63.800468][ T9355] vfs_kern_mount+0xc9/0x160 [ 63.807915][ T9355] btrfs_mount+0x3d3/0xb50 [ 63.816391][ T9355] ? btrfs_resize_thread_pool+0x250/0x250 [ 63.826004][ T9355] ? vfs_parse_fs_string+0x1ca/0x280 [ 63.833920][ T9355] ? trace_kfree+0x43/0xd0 [ 63.839318][ T9355] ? kfree+0x2d/0x2d0 [ 63.846419][ T9355] ? vfs_parse_fs_param+0x2d3/0x460 [ 63.853728][ T9355] ? vfs_parse_fs_string+0x1ca/0x280 [ 63.859675][ T9355] ? kmem_cache_alloc_trace+0x96/0x340 [ 63.867992][ T9355] ? cap_capable+0x27e/0x2d0 [ 63.881030][ T9355] ? legacy_init_fs_context+0x72/0xb0 [ 63.888511][ T9355] legacy_get_tree+0xea/0x180 executing program [ 63.906384][ T9355] ? btrfs_resize_thread_pool+0x250/0x250 [ 63.918162][ T9355] vfs_get_tree+0x86/0x270 [ 63.938822][ T9355] path_mount+0x196f/0x2be0 executing program [ 63.955574][ T9355] ? __check_object_size+0x2f3/0x3f0 [ 63.964054][ T9355] ? mark_mounts_for_expiry+0x520/0x520 [ 63.982574][ T9355] ? getname_flags+0x1fe/0x640 [ 63.997516][ T9355] __se_sys_mount+0x2f9/0x3b0 executing program [ 64.019546][ T9355] ? __x64_sys_mount+0xc0/0xc0 [ 64.042725][ T9355] ? syscall_enter_from_user_mode+0x2e/0x1c0 [ 64.064777][ T9355] ? lockdep_hardirqs_on+0x8d/0x130 executing program [ 64.076482][ T9355] ? __x64_sys_mount+0x1c/0xc0 [ 64.090897][ T9355] do_syscall_64+0x3f/0xb0 [ 64.099696][ T9355] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 64.128605][ T9355] RIP: 0033:0x44c08a [ 64.151161][ T9355] Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 a8 00 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 64.175330][ T9355] RSP: 002b:00007f6f53828128 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 executing program [ 64.219597][ T9355] RAX: ffffffffffffffda RBX: 00007f6f538281c0 RCX: 000000000044c08a [ 64.253871][ T9355] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f6f53828180 executing program [ 64.300403][ T9355] RBP: 0000000000000003 R08: 00007f6f538281c0 R09: 0000000020000000 executing program [ 64.347000][ T9355] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004 executing program [ 64.392397][ T9355] R13: 0000000020000218 R14: 0000000020000100 R15: 00007f6f53828180 [ 64.410198][ T9355] Kernel panic - not syncing: panic_on_warn set ... [ 64.417005][ T9355] CPU: 0 PID: 9355 Comm: syz-executor552 Not tainted 5.13.0-rc1-syzkaller #0 [ 64.425878][ T9355] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.436414][ T9355] Call Trace: [ 64.440068][ T9355] dump_stack+0x202/0x31e [ 64.444526][ T9355] ? show_regs_print_info+0x12/0x12 [ 64.449929][ T9355] ? log_buf_vmcoreinfo_setup+0x498/0x498 [ 64.455863][ T9355] panic+0x2e1/0x850 [ 64.459784][ T9355] ? __warn+0x13e/0x270 [ 64.464066][ T9355] ? nmi_panic+0x90/0x90 [ 64.468368][ T9355] __warn+0x26a/0x270 [ 64.472461][ T9355] ? close_fs_devices+0x763/0x880 [ 64.479840][ T9355] ? close_fs_devices+0x763/0x880 [ 64.485114][ T9355] report_bug+0x1b1/0x2e0 [ 64.489899][ T9355] handle_bug+0x3d/0x70 [ 64.494692][ T9355] exc_invalid_op+0x16/0x40 [ 64.499310][ T9355] asm_exc_invalid_op+0x12/0x20 [ 64.504273][ T9355] RIP: 0010:close_fs_devices+0x763/0x880 [ 64.511453][ T9355] Code: c4 38 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 85 0d 19 fe 0f 0b e9 29 f9 ff ff e8 79 0d 19 fe 0f 0b e9 3c ff ff ff e8 6d 0d 19 fe <0f> 0b e9 69 ff ff ff 48 c7 c1 14 45 38 8e 80 e1 07 80 c1 03 38 c1 [ 64.535000][ T9355] RSP: 0018:ffffc9000333f2f0 EFLAGS: 00010293 [ 64.541703][ T9355] RAX: ffffffff8365f5c3 RBX: 0000000000000001 RCX: ffff888029afd4c0 [ 64.551311][ T9355] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 64.559956][ T9355] RBP: ffff88802846f508 R08: ffffffff8365f525 R09: ffffed100337d128 [ 64.568131][ T9355] R10: ffffed100337d128 R11: 0000000000000000 R12: dffffc0000000000 [ 64.576315][ T9355] R13: ffff888019be8868 R14: 1ffff1100337d10d R15: 1ffff1100337d10a [ 64.584495][ T9355] ? close_fs_devices+0x6c5/0x880 [ 64.589802][ T9355] ? close_fs_devices+0x763/0x880 [ 64.595143][ T9355] btrfs_close_devices+0xc9/0x450 [ 64.600224][ T9355] ? rcu_force_quiescent_state+0x240/0x240 [ 64.606260][ T9355] ? __btrfs_free_extra_devids+0x6c0/0x6c0 [ 64.613588][ T9355] open_ctree+0x8e1/0x3968 [ 64.618546][ T9355] ? btrfs_cleanup_fs_roots+0xa18/0xa18 [ 64.624243][ T9355] ? rcu_read_lock_sched_held+0x87/0x110 [ 64.630170][ T9355] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 64.636269][ T9355] ? bdi_register_va+0x4dd/0x530 [ 64.641501][ T9355] ? do_raw_spin_unlock+0x134/0x8a0 [ 64.647648][ T9355] ? trace_writeback_bdi_register+0x133/0x260 [ 64.653841][ T9355] ? bdi_register_va+0x4e5/0x530 [ 64.659125][ T9355] ? super_setup_bdi_name+0x144/0x1b0 [ 64.664797][ T9355] ? __up_read+0x790/0x790 [ 64.669556][ T9355] ? vfs_get_tree+0x270/0x270 [ 64.674618][ T9355] ? sget+0x4d0/0x4f0 [ 64.678841][ T9355] btrfs_mount_root+0xac5/0xc60 [ 64.683757][ T9355] ? btrfs_control_open+0x40/0x40 [ 64.689110][ T9355] ? vfs_parse_fs_param+0x2d3/0x460 [ 64.694788][ T9355] ? vfs_parse_fs_string+0x1ca/0x280 [ 64.700281][ T9355] ? logfc+0x520/0x520 [ 64.704970][ T9355] legacy_get_tree+0xea/0x180 [ 64.709676][ T9355] ? btrfs_control_open+0x40/0x40 [ 64.715282][ T9355] vfs_get_tree+0x86/0x270 [ 64.719750][ T9355] vfs_kern_mount+0xc9/0x160 [ 64.724372][ T9355] btrfs_mount+0x3d3/0xb50 [ 64.728946][ T9355] ? btrfs_resize_thread_pool+0x250/0x250 [ 64.735001][ T9355] ? vfs_parse_fs_string+0x1ca/0x280 [ 64.741101][ T9355] ? trace_kfree+0x43/0xd0 [ 64.745655][ T9355] ? kfree+0x2d/0x2d0 [ 64.749869][ T9355] ? vfs_parse_fs_param+0x2d3/0x460 [ 64.755625][ T9355] ? vfs_parse_fs_string+0x1ca/0x280 [ 64.760947][ T9355] ? kmem_cache_alloc_trace+0x96/0x340 [ 64.766449][ T9355] ? cap_capable+0x27e/0x2d0 [ 64.771247][ T9355] ? legacy_init_fs_context+0x72/0xb0 [ 64.776937][ T9355] legacy_get_tree+0xea/0x180 [ 64.782087][ T9355] ? btrfs_resize_thread_pool+0x250/0x250 [ 64.787934][ T9355] vfs_get_tree+0x86/0x270 [ 64.793360][ T9355] path_mount+0x196f/0x2be0 [ 64.798094][ T9355] ? __check_object_size+0x2f3/0x3f0 [ 64.803508][ T9355] ? mark_mounts_for_expiry+0x520/0x520 [ 64.809382][ T9355] ? getname_flags+0x1fe/0x640 [ 64.814191][ T9355] __se_sys_mount+0x2f9/0x3b0 [ 64.819105][ T9355] ? __x64_sys_mount+0xc0/0xc0 [ 64.824223][ T9355] ? syscall_enter_from_user_mode+0x2e/0x1c0 [ 64.830468][ T9355] ? lockdep_hardirqs_on+0x8d/0x130 [ 64.836586][ T9355] ? __x64_sys_mount+0x1c/0xc0 [ 64.841709][ T9355] do_syscall_64+0x3f/0xb0 [ 64.846456][ T9355] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 64.852686][ T9355] RIP: 0033:0x44c08a [ 64.856916][ T9355] Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 a8 00 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 64.877915][ T9355] RSP: 002b:00007f6f53828128 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 64.888211][ T9355] RAX: ffffffffffffffda RBX: 00007f6f538281c0 RCX: 000000000044c08a [ 64.896297][ T9355] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f6f53828180 [ 64.905971][ T9355] RBP: 0000000000000003 R08: 00007f6f538281c0 R09: 0000000020000000 [ 64.914693][ T9355] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004 [ 64.923206][ T9355] R13: 0000000020000218 R14: 0000000020000100 R15: 00007f6f53828180 [ 64.933553][ T9355] Kernel Offset: disabled [ 64.938867][ T9355] Rebooting in 86400 seconds..