From: Sasha Levin <sashal@kernel.org>
To: stable@vger.kernel.org
Cc: Aditya Dutt <duttaditya18@gmail.com>, Sasha Levin <sashal@kernel.org>
Subject: Re: [PATCH 5.15.y] jfs: fix null ptr deref in dtInsertEntry
Date: Thu, 3 Jul 2025 14:34:49 -0400 [thread overview]
Message-ID: <20250703105304-2df1b0f7c178da90@stable.kernel.org> (raw)
In-Reply-To: <20250702185936.68245-1-duttaditya18@gmail.com>
[ Sasha's backport helper bot ]
Hi,
✅ All tests passed successfully. No issues detected.
No action required from the submitter.
The upstream commit SHA1 provided is correct: ce6dede912f064a855acf6f04a04cbb2c25b8c8c
WARNING: Author mismatch between patch and upstream commit:
Backport author: Aditya Dutt<duttaditya18@gmail.com>
Commit author: Edward Adam Davis<eadavis@qq.com>
Status in newer kernel trees:
6.15.y | Present (exact SHA1)
6.12.y | Present (exact SHA1)
6.6.y | Present (different SHA1: 6ea10dbb1e6c)
6.1.y | Present (different SHA1: 53023ab11836)
Note: The patch differs from the upstream commit:
---
1: ce6dede912f06 ! 1: 13f964bdcd97f jfs: fix null ptr deref in dtInsertEntry
@@ Metadata
## Commit message ##
jfs: fix null ptr deref in dtInsertEntry
+ [ Upstream commit ce6dede912f064a855acf6f04a04cbb2c25b8c8c ]
+
[syzbot reported]
general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
@@ Commit message
After got the page, check freelist first, if freelist == 0 then exit dtInsert()
and return -EINVAL.
+ Closes: https://syzkaller.appspot.com/bug?extid=30b3e48dc48dd2ad45b6
+ Reported-by: syzbot+30b3e48dc48dd2ad45b6@syzkaller.appspotmail.com
Reported-by: syzbot+bba84aef3a26fb93deb9@syzkaller.appspotmail.com
Signed-off-by: Edward Adam Davis <eadavis@qq.com>
Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
+ Signed-off-by: Aditya Dutt <duttaditya18@gmail.com>
## fs/jfs/jfs_dtree.c ##
@@ fs/jfs/jfs_dtree.c: int dtInsert(tid_t tid, struct inode *ip,
---
Results of testing on various branches:
| Branch | Patch Apply | Build Test |
|---------------------------|-------------|------------|
| stable/linux-5.15.y | Success | Success |
prev parent reply other threads:[~2025-07-03 18:34 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-02 18:59 [PATCH 5.15.y] jfs: fix null ptr deref in dtInsertEntry Aditya Dutt
2025-07-03 18:34 ` Sasha Levin [this message]
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