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memory leak in vma_node_allow

Status: upstream: reported C repro on 2023/02/13 00:25
Labels: dri (incorrect?)
Reported-by: syzbot+58ea3177ba8bd0a5d8ee@syzkaller.appspotmail.com
First crash: 113d, last: 19d
▶ ▼ Discussions (2)
Title Replies (including bot) Last reply
[syzbot] Monthly dri report (May 2023) 0 (1) 2023/05/25 09:36
[syzbot] memory leak in vma_node_allow 0 (1) 2023/02/13 00:25
▶ ▼ Last patch testing requests (1)
Created Duration User Patch Repo Result
2023/05/14 08:44 10m retest repro upstream report log

Sample crash report:
Warning: Permanently added '10.128.1.168' (ECDSA) to the list of known hosts.
executing program
executing program
BUG: memory leak
unreferenced object 0xffff88810f1c75c0 (size 64):
  comm "syz-executor750", pid 5060, jiffies 4294945258 (age 13.860s)
  hex dump (first 32 bytes):
    01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 d6 e4 04 81 88 ff ff  ................
  backtrace:
    [<ffffffff81508f84>] kmalloc_trace+0x24/0x90 mm/slab_common.c:1062
    [<ffffffff82787cca>] kmalloc include/linux/slab.h:580 [inline]
    [<ffffffff82787cca>] vma_node_allow+0x3a/0x150 drivers/gpu/drm/drm_vma_manager.c:255
    [<ffffffff8276788e>] drm_gem_handle_create_tail+0x10e/0x250 drivers/gpu/drm/drm_gem.c:377
    [<ffffffff8278ed4d>] drm_gem_shmem_create_with_handle drivers/gpu/drm/drm_gem_shmem_helper.c:432 [inline]
    [<ffffffff8278ed4d>] drm_gem_shmem_dumb_create+0xbd/0x200 drivers/gpu/drm/drm_gem_shmem_helper.c:534
    [<ffffffff82753a5b>] drm_mode_create_dumb+0x11b/0x150 drivers/gpu/drm/drm_dumb_buffers.c:96
    [<ffffffff82768e28>] drm_ioctl_kernel+0x148/0x260 drivers/gpu/drm/drm_ioctl.c:788
    [<ffffffff82769230>] drm_ioctl+0x2f0/0x500 drivers/gpu/drm/drm_ioctl.c:891
    [<ffffffff81642600>] vfs_ioctl fs/ioctl.c:51 [inline]
    [<ffffffff81642600>] __do_sys_ioctl fs/ioctl.c:870 [inline]
    [<ffffffff81642600>] __se_sys_ioctl fs/ioctl.c:856 [inline]
    [<ffffffff81642600>] __x64_sys_ioctl+0x100/0x140 fs/ioctl.c:856
    [<ffffffff8498c889>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff8498c889>] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84a0008b>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

BUG: memory leak
unreferenced object 0xffff888109662d80 (size 64):
  comm "syz-executor750", pid 5060, jiffies 4294945258 (age 13.870s)
  hex dump (first 32 bytes):
    01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 d6 e4 04 81 88 ff ff  ................
  backtrace:
    [<ffffffff81508f84>] kmalloc_trace+0x24/0x90 mm/slab_common.c:1062
    [<ffffffff82787cca>] kmalloc include/linux/slab.h:580 [inline]
    [<ffffffff82787cca>] vma_node_allow+0x3a/0x150 drivers/gpu/drm/drm_vma_manager.c:255
    [<ffffffff8276788e>] drm_gem_handle_create_tail+0x10e/0x250 drivers/gpu/drm/drm_gem.c:377
    [<ffffffff8278ed4d>] drm_gem_shmem_create_with_handle drivers/gpu/drm/drm_gem_shmem_helper.c:432 [inline]
    [<ffffffff8278ed4d>] drm_gem_shmem_dumb_create+0xbd/0x200 drivers/gpu/drm/drm_gem_shmem_helper.c:534
    [<ffffffff82753a5b>] drm_mode_create_dumb+0x11b/0x150 drivers/gpu/drm/drm_dumb_buffers.c:96
    [<ffffffff82768e28>] drm_ioctl_kernel+0x148/0x260 drivers/gpu/drm/drm_ioctl.c:788
    [<ffffffff82769230>] drm_ioctl+0x2f0/0x500 drivers/gpu/drm/drm_ioctl.c:891
    [<ffffffff81642600>] vfs_ioctl fs/ioctl.c:51 [inline]
    [<ffffffff81642600>] __do_sys_ioctl fs/ioctl.c:870 [inline]
    [<ffffffff81642600>] __se_sys_ioctl fs/ioctl.c:856 [inline]
    [<ffffffff81642600>] __x64_sys_ioctl+0x100/0x140 fs/ioctl.c:856
    [<ffffffff8498c889>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff8498c889>] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84a0008b>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

BUG: memory leak
unreferenced object 0xffff888109662900 (size 64):
  comm "syz-executor750", pid 5069, jiffies 4294945834 (age 8.110s)
  hex dump (first 32 bytes):
    01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 ce 8f 09 81 88 ff ff  ................
  backtrace:
    [<ffffffff81508f84>] kmalloc_trace+0x24/0x90 mm/slab_common.c:1062
    [<ffffffff82787cca>] kmalloc include/linux/slab.h:580 [inline]
    [<ffffffff82787cca>] vma_node_allow+0x3a/0x150 drivers/gpu/drm/drm_vma_manager.c:255
    [<ffffffff8276788e>] drm_gem_handle_create_tail+0x10e/0x250 drivers/gpu/drm/drm_gem.c:377
    [<ffffffff8278ed4d>] drm_gem_shmem_create_with_handle drivers/gpu/drm/drm_gem_shmem_helper.c:432 [inline]
    [<ffffffff8278ed4d>] drm_gem_shmem_dumb_create+0xbd/0x200 drivers/gpu/drm/drm_gem_shmem_helper.c:534
    [<ffffffff82753a5b>] drm_mode_create_dumb+0x11b/0x150 drivers/gpu/drm/drm_dumb_buffers.c:96
    [<ffffffff82768e28>] drm_ioctl_kernel+0x148/0x260 drivers/gpu/drm/drm_ioctl.c:788
    [<ffffffff82769230>] drm_ioctl+0x2f0/0x500 drivers/gpu/drm/drm_ioctl.c:891
    [<ffffffff81642600>] vfs_ioctl fs/ioctl.c:51 [inline]
    [<ffffffff81642600>] __do_sys_ioctl fs/ioctl.c:870 [inline]
    [<ffffffff81642600>] __se_sys_ioctl fs/ioctl.c:856 [inline]
    [<ffffffff81642600>] __x64_sys_ioctl+0x100/0x140 fs/ioctl.c:856
    [<ffffffff8498c889>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff8498c889>] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84a0008b>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

BUG: memory leak
unreferenced object 0xffff888109662940 (size 64):
  comm "syz-executor750", pid 5069, jiffies 4294945834 (age 8.110s)
  hex dump (first 32 bytes):
    01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 ce 8f 09 81 88 ff ff  ................
  backtrace:
    [<ffffffff81508f84>] kmalloc_trace+0x24/0x90 mm/slab_common.c:1062
    [<ffffffff82787cca>] kmalloc include/linux/slab.h:580 [inline]
    [<ffffffff82787cca>] vma_node_allow+0x3a/0x150 drivers/gpu/drm/drm_vma_manager.c:255
    [<ffffffff8276788e>] drm_gem_handle_create_tail+0x10e/0x250 drivers/gpu/drm/drm_gem.c:377
    [<ffffffff8278ed4d>] drm_gem_shmem_create_with_handle drivers/gpu/drm/drm_gem_shmem_helper.c:432 [inline]
    [<ffffffff8278ed4d>] drm_gem_shmem_dumb_create+0xbd/0x200 drivers/gpu/drm/drm_gem_shmem_helper.c:534
    [<ffffffff82753a5b>] drm_mode_create_dumb+0x11b/0x150 drivers/gpu/drm/drm_dumb_buffers.c:96
    [<ffffffff82768e28>] drm_ioctl_kernel+0x148/0x260 drivers/gpu/drm/drm_ioctl.c:788
    [<ffffffff82769230>] drm_ioctl+0x2f0/0x500 drivers/gpu/drm/drm_ioctl.c:891
    [<ffffffff81642600>] vfs_ioctl fs/ioctl.c:51 [inline]
    [<ffffffff81642600>] __do_sys_ioctl fs/ioctl.c:870 [inline]
    [<ffffffff81642600>] __se_sys_ioctl fs/ioctl.c:856 [inline]
    [<ffffffff81642600>] __x64_sys_ioctl+0x100/0x140 fs/ioctl.c:856
    [<ffffffff8498c889>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff8498c889>] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84a0008b>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Manager Title
2023/02/09 00:20 upstream 0983f6bf2bfc fc9c934e .config console log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-gce-leak memory leak in vma_node_allow
* Struck through repros no longer work on HEAD.