[f2fs-dev] [Bug 214895] F2FS BUG: KASAN: stack-out-of-bounds in d_shrink_add+0x17f/0x1c0

[bugzilla-daemon@bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=214895

Chao Yu (chao@kernel.org) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED

--- Comment #4 from Chao Yu (chao@kernel.org) ---
Oh, sorry, I guess this is a known issue which has been reported in below link
[1], please apply fixing patch [2] to see whether it can fix your problem.

[1] https://bugzilla.kernel.org/show_bug.cgi?id=204135

[2]
https://lore.kernel.org/linux-f2fs-devel/20190712085700.4239-1-yuchao0@huawei.com/T/#u

I can't reproduce this issue due to the "runner" test program crashed in 733
line.

(gdb) r
> Make dir /root/mnt
> Begin testing syscall...
> To mount root ...
MOUNT ROOT f2fs on /root/mnt: with
[nouser_xattr,active_logs=6,inline_data,fastboot,extent_cache]
> Mount root done...
[Detaching after vfork from child process 14904]
mount(dev: /dev/loop11, g_workspace: /root/mnt, fs: f2fs, 0, option:
nouser_xattr,active_logs=6,inline_data,fastboot,extent_cache)REMOUNT ROOT f2fs
on /root/mnt: with
[discard,no_heap,active_logs=6,inline_data,flush_merge,fastboot,extent_cache,mode=adaptive]
munmap_chunk(): invalid pointer

Program received signal SIGABRT, Aborted.
0x00000000004cc56b in raise ()
(gdb) bt
#0  0x00000000004cc56b in raise ()
#1  0x0000000000403ae3 in abort ()
#2  0x00000000004e6556 in __libc_message ()
#3  0x00000000004ecaec in malloc_printerr ()
#4  0x00000000004ecd1c in munmap_chunk ()
#5  0x0000000000405943 in m_deepen (curr_path=0x5855a8
"/root/mnt/fONyUHhUjtamPfvodyYSGfoo_318/gLCxIfoo_576/tFawtTrTsddGXmDCrYIvnOmEJPwiSUPkLfMfpHlZwOnItTpnEDfoo_663/biCedwbdHbfFfoo_884",
depth=665)
    at 214895.c:212
#6  0x0000000000408681 in test_syscall () at 214895.c:733
#7  0x000000000040b48c in main (argc=1, argv=0x7fffffffe388) at 214895.c:1260
(gdb) quit
A debugging session is active.

        Inferior 1 [process 14896] will be killed.

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