6.15-stable review patch. If anyone has any objections, please let me know.
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From: Illia Ostapyshyn illia@yshyn.com
commit e6d3e653b084f003977bf2e33820cb84d2e4541f upstream.
d_shortname of struct dentry only reserves D_NAME_INLINE_LEN characters and contains garbage for longer names. Use d_name instead, which always references the valid name.
Link: https://lore.kernel.org/all/20250525213709.878287-2-illia@yshyn.com/ Link: https://lkml.kernel.org/r/20250629003811.2420418-1-illia@yshyn.com Fixes: 79300ac805b6 ("scripts/gdb: fix dentry_name() lookup") Signed-off-by: Illia Ostapyshyn illia@yshyn.com Tested-by: Florian Fainelli florian.fainelli@broadcom.com Reviewed-by: Florian Fainelli florian.fainelli@broadcom.com Cc: Al Viro viro@zeniv.linux.org.uk Cc: Christian Brauner brauner@kernel.org Cc: Jan Kara jack@suse.cz Cc: Jan Kiszka jan.kiszka@siemens.com Cc: Kieran Bingham kbingham@kernel.org Cc: stable@vger.kernel.org Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- scripts/gdb/linux/vfs.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/scripts/gdb/linux/vfs.py b/scripts/gdb/linux/vfs.py index b5fbb18ccb77..9e921b645a68 100644 --- a/scripts/gdb/linux/vfs.py +++ b/scripts/gdb/linux/vfs.py @@ -22,7 +22,7 @@ def dentry_name(d): if parent == d or parent == 0: return "" p = dentry_name(d['d_parent']) + "/" - return p + d['d_shortname']['string'].string() + return p + d['d_name']['name'].string()
class DentryName(gdb.Function): """Return string of the full path of a dentry.