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From: bugzilla-daemon@bugzilla.kernel.org
To: linux-ext4@vger.kernel.org
Subject: [Bug 202897] BUG: unable to handle kernel paging request at __memmove
Date: Wed, 20 Mar 2019 00:23:54 +0000	[thread overview]
Message-ID: <bug-202897-13602-hcLvm7U5fI@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-202897-13602@https.bugzilla.kernel.org/>

https://bugzilla.kernel.org/show_bug.cgi?id=202897

--- Comment #4 from phoonchiang (389387252@qq.com) ---
The following patch can fix this bug, but i'm not sure it is the best way 
to fix it.


diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index 86ed9c6..fd2ebba 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -1695,7 +1695,7 @@ static int ext4_xattr_set_entry(struct ext4_xattr_info
*i,

        /* No failures allowed past this point. */

-       if (!s->not_found && here->e_value_size && here->e_value_offs) {
+       if (!s->not_found && here->e_value_size && here->e_value_offs &&
!here->e_value_inum) {
                /* Remove the old value. */
                void *first_val = s->base + min_offs;
                size_t offs = le16_to_cpu(here->e_value_offs);

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  parent reply	other threads:[~2019-03-20  0:23 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-13  6:51 [Bug 202897] New: BUG: unable to handle kernel paging request at __memmove bugzilla-daemon
2019-03-13  6:51 ` [Bug 202897] " bugzilla-daemon
2019-03-15 14:15 ` bugzilla-daemon
2019-03-15 16:00 ` bugzilla-daemon
2019-03-20  0:23 ` bugzilla-daemon [this message]
2019-03-21  0:40 ` bugzilla-daemon
2019-03-24  5:28 ` bugzilla-daemon
2019-04-05 20:16 ` bugzilla-daemon
2019-04-05 21:37 ` bugzilla-daemon
2019-04-05 22:42 ` bugzilla-daemon

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