Messages in this thread Patch in this message | | | From | Jesper Juhl <> | Subject | [PATCH] panic() instead of crashing on a null pointer deref in mount_block_root() | Date | Sun, 14 May 2006 02:07:51 +0200 |
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If __getname() fails in mount_block_root() we are dead in the water, but a panic() seems a little nicer than crashing due to a NULL pointer deref.
Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> ---
init/do_mounts.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletion(-)
--- linux-2.6.17-rc4-git2-orig/init/do_mounts.c 2006-05-13 21:28:53.000000000 +0200 +++ linux-2.6.17-rc4-git2/init/do_mounts.c 2006-05-14 02:05:52.000000000 +0200 @@ -286,6 +286,8 @@ void __init mount_block_root(char *name, char *p; char b[BDEVNAME_SIZE]; + if (!fs_names) + panic("VFS: Failed memory allocation in mount_block_root()"); get_fs_names(fs_names); retry: for (p = fs_names; *p; p += strlen(p)+1) { @@ -425,4 +427,3 @@ out: security_sb_post_mountroot(); mount_devfs_fs (); } -
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