From: Hillf Danton <hdanton@sina.com>
To: syzbot <syzbot+763afad57075d3f862f2@syzkaller.appspotmail.com>
Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [f2fs?] KASAN: slab-use-after-free Read in f2fs_filemap_fault
Date: Mon, 15 Jan 2024 20:05:35 +0800 [thread overview]
Message-ID: <20240115120535.850-1-hdanton@sina.com> (raw)
In-Reply-To: <0000000000000b4e27060ef8694c@google.com>
On Mon, 15 Jan 2024 01:12:17 -0800
> HEAD commit: 052d534373b7 Merge tag 'exfat-for-6.8-rc1' of git://git.ke..
> git tree: upstream
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1422d5ebe80000
#syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
--- x/fs/f2fs/file.c
+++ y/fs/f2fs/file.c
@@ -39,6 +39,7 @@
static vm_fault_t f2fs_filemap_fault(struct vm_fault *vmf)
{
struct inode *inode = file_inode(vmf->vma->vm_file);
+ vm_flags_t flags = vmf->vma->vm_flags;
vm_fault_t ret;
ret = filemap_fault(vmf);
@@ -46,7 +47,7 @@ static vm_fault_t f2fs_filemap_fault(str
f2fs_update_iostat(F2FS_I_SB(inode), inode,
APP_MAPPED_READ_IO, F2FS_BLKSIZE);
- trace_f2fs_filemap_fault(inode, vmf->pgoff, vmf->vma->vm_flags, ret);
+ trace_f2fs_filemap_fault(inode, vmf->pgoff, flags, ret);
return ret;
}
--
next prev parent reply other threads:[~2024-01-15 12:06 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-15 9:12 syzbot
2024-01-15 12:05 ` Hillf Danton [this message]
2024-01-15 19:17 ` syzbot
2024-03-12 1:33 ` Ed Tsai (蔡宗軒)
2024-03-13 1:31 ` Jaegeuk Kim
2024-03-14 2:19 ` [f2fs-dev] " Chao Yu
[not found] ` <SI2PR03MB52600BD4AFAD1E324FD0430584332@SI2PR03MB5260.apcprd03.prod.outlook.com>
2024-03-20 6:59 ` f2fs F2FS_IOC_SHUTDOWN hang issue Light Hsieh (謝明燈)
2024-03-20 20:06 ` Jaegeuk Kim
2024-03-20 23:34 ` 回覆: " Light Hsieh (謝明燈)
2024-03-21 0:39 ` Jaegeuk Kim
[not found] ` <SI2PR03MB52605816252C9ABA3D8550F084322@SI2PR03MB5260.apcprd03.prod.outlook.com>
2024-03-22 0:30 ` 回覆: " Jaegeuk Kim
2024-03-13 14:32 ` [syzbot] [f2fs?] KASAN: slab-use-after-free Read in f2fs_filemap_fault Chao Yu
2024-03-13 14:50 ` syzbot
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