31 lines
1.1 KiB
Plaintext
31 lines
1.1 KiB
Plaintext
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URL: https://bugzilla.kernel.org/show_bug.cgi?id=154021
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Lukas Lueg 2016-08-26 22:53:42 UTC
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Created attachment 230361 [details]
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Image triggering btrfsck to segv
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The fuzzer hit again:
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==32522==ERROR: AddressSanitizer: SEGV on unknown address 0x00027fff801c (pc
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0x0000004a952e bp 0x7fff5222ce70 sp 0x7fff5222c600 T0)
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#0 0x4a952d in __asan_memcpy
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(/home/lukas/dev/btrfsfuzz/bin-asan/bin/btrfs+0x4a952d)
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#1 0x66a323 in read_extent_buffer
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/home/lukas/dev/btrfsfuzz/src-asan/extent_io.c:867:2
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#2 0x55ad25 in btrfs_node_key
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/home/lukas/dev/btrfsfuzz/src-asan/./ctree.h:1668:2
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#3 0x58573b in check_fs_root
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/home/lukas/dev/btrfsfuzz/src-asan/cmds-check.c:3748:3
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#4 0x544136 in check_fs_roots
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/home/lukas/dev/btrfsfuzz/src-asan/cmds-check.c:3896:10
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#5 0x53d8c5 in cmd_check
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/home/lukas/dev/btrfsfuzz/src-asan/cmds-check.c:11470:8
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#6 0x4f105f in main /home/lukas/dev/btrfsfuzz/src-asan/btrfs.c:243:8
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#7 0x7fea1bcb7730 in __libc_start_main (/lib64/libc.so.6+0x20730)
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#8 0x421238 in _start
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(/home/lukas/dev/btrfsfuzz/bin-asan/bin/btrfs+0x421238)
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See the attached image to reproduce using btrfs-progs btrfs-progs
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v4.7-42-g56e9586.
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