AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-11-24 04:50:53 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

Remove easily user-triggerable BUG from generic_setlease

Browse Source 
This can be trivially triggered from userspace by passing in something unexpected.

    kernel BUG at fs/locks.c:1468!
    invalid opcode: 0000 [#1] SMP
    RIP: 0010:generic_setlease+0xc2/0x100
    Call Trace:
      __vfs_setlease+0x35/0x40
      fcntl_setlease+0x76/0x150
      sys_fcntl+0x1c6/0x810
      system_call_fastpath+0x1a/0x1f

Signed-off-by: Dave Jones <davej@redhat.com>
Cc: stable@kernel.org # 3.2+
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Dave Jones 2012-07-13 13:35:36 -04:00 committed by Linus Torvalds
parent 39ea32ca7e
commit 8d657eb3b4
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
fs/locks.c
View File

@ -1465,7 +1465,7 @@ int generic_setlease(struct file *filp, long arg, struct file_lock **flp)
case F_WRLCK:
return generic_add_lease(filp, arg, flp);
default:
BUG();
return -EINVAL;
}
}
EXPORT_SYMBOL(generic_setlease);