lkml.org 
[lkml]   [2018]   [Jul]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: WARNING: kmalloc bug in krealloc
From
Date
This looks like a v9fs bug. xattrwalk is returning bogus return value.

[ 30.321571] v9fs_xattr_get(): name = security.capability buffer = (null) value_len = 0
[ 30.323819] >>> TXATTRWALK file_fid 1, attr_fid 2 name security.capability
[ 30.326132] <<< RXATTRWALK fid 2 size 17441174723711270912
[ 30.327667] attr_size=17441174723711270912 buffer_size=0 retval=-1005569349998280704
[ 30.329684] vfs_getxattr_alloc(): value= (null) error=5570560 xattr_size=24
[ 30.331610] WARNING: CPU: 2 PID: 8807 at mm/slab_common.c:1031 kmalloc_slab+0x56/0x70

-1005569349998280704 is 0xF20B800100550000, and taking lower 32bits of F20B800100550000 is
0x550000 which is 5570560, which is too large size for kmalloc().

\
 
 \ /
  Last update: 2018-07-16 09:18    [W:0.055 / U:0.284 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site