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audit: type=1400 audit(1601776257.602:8): avc: denied { execmem } for pid=6511 comm="syz-executor967" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 erofs: read_super, device -> /dev/loop0 erofs: options -> ================================================================================ UBSAN: Undefined behaviour in drivers/staging/erofs/super.c:122:3 shift exponent 55 is too large for 32-bit type 'int' CPU: 1 PID: 6511 Comm: syz-executor967 Not tainted 4.19.149-syzkaller #0 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+0x22c/0x33e lib/dump_stack.c:118 ubsan_epilogue+0xe/0x3a lib/ubsan.c:161 __ubsan_handle_shift_out_of_bounds.cold+0x1c4/0x250 lib/ubsan.c:422 superblock_read drivers/staging/erofs/super.c:122 [inline] erofs_read_super drivers/staging/erofs/super.c:356 [inline] erofs_fill_super+0x397/0x12fc drivers/staging/erofs/super.c:499 mount_bdev+0x2fc/0x3b0 fs/super.c:1158 erofs_mount+0x8c/0xc0 drivers/staging/erofs/super.c:512 mount_fs+0xa3/0x318 fs/super.c:1261 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961 vfs_kern_mount fs/namespace.c:951 [inline] do_new_mount fs/namespace.c:2469 [inline] do_mount+0x51c/0x2f10 fs/namespace.c:2799 ksys_mount+0xcf/0x130 fs/namespace.c:3015 __do_sys_mount fs/namespace.c:3029 [inline] __se_sys_mount fs/namespace.c:3026 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3026 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x446d4a Code: b8 08 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 fd ad fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 da ad fb ff c3 66 0f 1f 84 00 00 00 00 00 RSP: 002b:00007fff86bca7c8 EFLAGS: 00000297 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fff86bca820 RCX: 0000000000446d4a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fff86bca7e0 RBP: 00007fff86bca7e0 R08: 00007fff86bca820 R09: 00007fff00000015 R10: 0000000000000000 R11: 0000000000000297 R12: 0000000000000002 R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003 ================================================================================ erofs: blksize 8388608 isn't supported on this platform
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2020/10/04 01:52 | linux-4.19.y | b09c34517e1a | 1a3f9408 | .config | console log | report | syz | C | ci2-linux-4-19 | |||
2020/09/20 17:24 | linux-4.19.y | 015e94d0e37b | 9564d2e9 | .config | console log | report | syz | C | ci2-linux-4-19 | |||
2020/10/20 19:24 | linux-4.19.y | ad326970d25c | ff4a3345 | .config | console log | report | info | ci2-linux-4-19 | ||||
2020/10/18 03:39 | linux-4.19.y | ad326970d25c | fea47c01 | .config | console log | report | info | ci2-linux-4-19 | ||||
2020/10/18 02:59 | linux-4.19.y | ad326970d25c | fea47c01 | .config | console log | report | info | ci2-linux-4-19 | ||||
2020/10/15 20:48 | linux-4.19.y | a1b977b49b66 | 6e262c73 | .config | console log | report | info | ci2-linux-4-19 | ||||
2020/10/13 08:18 | linux-4.19.y | a1b977b49b66 | bd69ee0d | .config | console log | report | info | ci2-linux-4-19 | ||||
2020/10/13 04:35 | linux-4.19.y | a1b977b49b66 | d32b0bbf | .config | console log | report | info | ci2-linux-4-19 | ||||
2020/10/12 05:29 | linux-4.19.y | a1b977b49b66 | 4a77ae0b | .config | console log | report | info | ci2-linux-4-19 | ||||
2020/10/12 02:34 | linux-4.19.y | a1b977b49b66 | 4a77ae0b | .config | console log | report | info | ci2-linux-4-19 | ||||
2020/10/09 09:50 | linux-4.19.y | a1b977b49b66 | fa79ed2a | .config | console log | report | info | ci2-linux-4-19 | ||||
2020/10/08 11:06 | linux-4.19.y | a1b977b49b66 | 92390980 | .config | console log | report | info | ci2-linux-4-19 | ||||
2020/10/08 08:49 | linux-4.19.y | a1b977b49b66 | 1880b4a9 | .config | console log | report | info | ci2-linux-4-19 | ||||
2020/10/01 03:48 | linux-4.19.y | 10ad6cfd5736 | a9767fb2 | .config | console log | report | info | ci2-linux-4-19 | ||||
2020/09/29 13:36 | linux-4.19.y | 10ad6cfd5736 | 1b88c6d5 | .config | console log | report | info | ci2-linux-4-19 | ||||
2020/09/25 09:32 | linux-4.19.y | d09b80172c22 | 54289b08 | .config | console log | report | info | ci2-linux-4-19 | ||||
2020/09/24 14:06 | linux-4.19.y | d09b80172c22 | 54289b08 | .config | console log | report | info | ci2-linux-4-19 | ||||
2020/09/23 11:43 | linux-4.19.y | d09b80172c22 | 287cd75a | .config | console log | report | info | ci2-linux-4-19 | ||||
2020/09/22 19:45 | linux-4.19.y | 015e94d0e37b | 3e8f6c27 | .config | console log | report | info | ci2-linux-4-19 | ||||
2020/09/20 17:09 | linux-4.19.y | 015e94d0e37b | 9564d2e9 | .config | console log | report | info | ci2-linux-4-19 |