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afs: Fix unchecked-length string display in debug statement

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Fix afs_extract_vlserver_list() to limit the length of the displayed
string in a debug statement().

Fixes: 0a5143f2f8 ("afs: Implement VL server rotation")
Closes: https://sashiko.dev/#/patchset/20260618074903.2374756-1-dhowells%40redhat.com
Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://patch.msgid.link/20260622090856.2746629-22-dhowells@redhat.com
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
This commit is contained in:
David Howells
2026-06-22 10:08:55 +01:00
committed by Christian Brauner
parent 56b4e4b26f
commit 903d37c972
1 changed files with 5 additions and 1 deletions
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6
fs/afs/vl_list.c
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@@ -200,6 +200,8 @@ struct afs_vlserver_list *afs_extract_vlserver_list(struct afs_cell *cell,
b += sizeof(*hdr);
while (end - b >= sizeof(bs)) {
int nlen;
bs.name_len = afs_extract_le16(&b);
bs.priority = afs_extract_le16(&b);
bs.weight = afs_extract_le16(&b);
@@ -209,10 +211,12 @@ struct afs_vlserver_list *afs_extract_vlserver_list(struct afs_cell *cell,
bs.protocol = *b++;
bs.nr_addrs = *b++;
nlen = min3(bs.name_len, end - b, 255);
_debug("extract %u %u %u %u %u %u %*.*s",
bs.name_len, bs.priority, bs.weight,
bs.port, bs.protocol, bs.nr_addrs,
bs.name_len, bs.name_len, b);
bs.name_len, nlen, b);
if (end - b < bs.name_len)
break;