syzbot


memory leak in __get_metapage

Status: upstream: reported syz repro on 2022/10/04 08:49
Reported-by: syzbot+389b82b29093b3e2640a@syzkaller.appspotmail.com
First crash: 59d, last: 57d
Patch testing requests:
Created Duration User Patch Repo Result
2022/10/11 10:32 8m fmdefrancesco@gmail.com patch git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git -- report log
2022/10/08 18:51 8m fmdefrancesco@gmail.com patch upstream report log
2022/10/06 23:26 9m fmdefrancesco@gmail.com upstream report log
2022/10/06 19:43 8m fmdefrancesco@gmail.com upstream report log
2022/10/06 01:28 0m fmdefrancesco@gmail.com patch git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 6.0 error
2022/10/05 14:21 8m mazinalhaddad05@gmail.com patch upstream report log
2022/10/05 14:18 8m mazinalhaddad05@gmail.com upstream report log

Sample crash report:
BUG: memory leak
unreferenced object 0xffff888114339e80 (size 128):
  comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
  hex dump (first 32 bytes):
    00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
    [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
    [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
    [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
    [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
    [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
    [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
    [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
    [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
    [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
    [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
    [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
    [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
    [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
    [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

BUG: memory leak
unreferenced object 0xffff888114339e00 (size 128):
  comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
  hex dump (first 32 bytes):
    00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
    [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
    [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
    [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
    [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
    [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
    [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
    [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
    [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
    [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
    [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
    [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
    [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
    [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
    [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

BUG: memory leak
unreferenced object 0xffff888114339d80 (size 128):
  comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
  hex dump (first 32 bytes):
    00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
    [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
    [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
    [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
    [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
    [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
    [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
    [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
    [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
    [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
    [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
    [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
    [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
    [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
    [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

BUG: memory leak
unreferenced object 0xffff8881142f0300 (size 128):
  comm "syz-executor.0", pid 3676, jiffies 4295017533 (age 7.330s)
  hex dump (first 32 bytes):
    00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
    [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
    [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
    [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
    [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
    [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
    [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
    [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
    [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
    [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
    [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
    [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
    [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
    [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
    [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd


Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-gce-leak 2022/10/04 05:49 upstream 4fe89d07dcc2 feb56351 .config log report syz memory leak in __get_metapage
* Struck through repros no longer work on HEAD.