------------[ cut here ]------------ WARNING: CPU: 0 PID: 6799 at drivers/gpu/drm/drm_gem.c:225 drm_gem_object_handle_put_unlocked+0x220/0x2dc drivers/gpu/drm/drm_gem.c:225 Modules linked in: CPU: 0 PID: 6799 Comm: syz-executor.0 Not tainted 6.8.0-rc7-syzkaller-00135-g707081b61156 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : drm_gem_object_handle_put_unlocked+0x220/0x2dc drivers/gpu/drm/drm_gem.c:225 lr : drm_gem_object_handle_put_unlocked+0x220/0x2dc drivers/gpu/drm/drm_gem.c:225 sp : ffff8000979378a0 x29: ffff8000979378a0 x28: dfff800000000000 x27: 0000000000000001 x26: ffff0000c8e50000 x25: 1fffe0001cd63901 x24: dfff800000000000 x23: 1fffe0001cd63900 x22: ffff0000e6b1c804 x21: ffff0000e6b1c808 x20: 0000000000000000 x19: ffff0000e6b1c800 x18: 1fffe00036804396 x17: 0000000000000000 x16: ffff800080276f8c x15: 0000000000000001 x14: 1fffe0001c2fd61c x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000001 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000d1ee3c00 x7 : ffff800083ebdb58 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff80008033a548 x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: drm_gem_object_handle_put_unlocked+0x220/0x2dc drivers/gpu/drm/drm_gem.c:225 drm_gem_handle_create_tail+0x224/0x384 drivers/gpu/drm/drm_gem.c:407 drm_gem_handle_create+0x60/0x74 drivers/gpu/drm/drm_gem.c:430 drm_gem_shmem_create_with_handle drivers/gpu/drm/drm_gem_shmem_helper.c:417 [inline] drm_gem_shmem_dumb_create+0x21c/0x3b0 drivers/gpu/drm/drm_gem_shmem_helper.c:505 drm_mode_create_dumb drivers/gpu/drm/drm_dumb_buffers.c:96 [inline] drm_mode_create_dumb_ioctl+0x1d0/0x250 drivers/gpu/drm/drm_dumb_buffers.c:102 drm_ioctl_kernel+0x26c/0x368 drivers/gpu/drm/drm_ioctl.c:744 drm_ioctl+0x5e4/0xae4 drivers/gpu/drm/drm_ioctl.c:841 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:871 [inline] __se_sys_ioctl fs/ioctl.c:857 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:857 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 irq event stamp: 408 hardirqs last enabled at (407): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:85 [inline] hardirqs last enabled at (407): [] exit_to_kernel_mode+0xdc/0x10c arch/arm64/kernel/entry-common.c:95 hardirqs last disabled at (408): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:470 softirqs last enabled at (402): [] softirq_handle_end kernel/softirq.c:399 [inline] softirqs last enabled at (402): [] __do_softirq+0xac8/0xce4 kernel/softirq.c:582 softirqs last disabled at (275): [] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:81 ---[ end trace 0000000000000000 ]---