------------[ cut here ]------------
refcount_t: saturated; leaking memory.
WARNING: CPU: 1 PID: 12066 at lib/refcount.c:22 refcount_warn_saturate+0x153/0x1a0 lib/refcount.c:22
Modules linked in:
CPU: 1 PID: 12066 Comm: syz.0.2204 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:refcount_warn_saturate+0x153/0x1a0 lib/refcount.c:22
Code: 09 01 48 c7 c7 80 8a 79 8a e8 e9 1f cc 05 0f 0b eb 8c e8 b0 28 96 fd c6 05 56 6d 93 09 01 48 c7 c7 80 8a 79 8a e8 cd 1f cc 05 <0f> 0b e9 6d ff ff ff e8 91 28 96 fd c6 05 3b 6d 93 09 01 48 c7 c7
RSP: 0018:ffffc90002ebf7d8 EFLAGS: 00010246
RAX: b44ee884af1b4a00 RBX: 0000000000000001 RCX: 0000000000080000
RDX: ffffc9000fe3f000 RSI: 0000000000002f48 RDI: 0000000000002f49
RBP: 0000000081090680 R08: ffffc90002ebf307 R09: 1ffff920005d7e60
R10: dffffc0000000000 R11: fffff520005d7e61 R12: ffff88802a242618
R13: ffffc90002f3fc60 R14: 0000000000000001 R15: ffff88802a242600
FS: 00007f15b9ddd6c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f15b99bc000 CR3: 000000001f590000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
__refcount_add include/linux/refcount.h:-1 [inline]
__refcount_inc include/linux/refcount.h:250 [inline]
refcount_inc include/linux/refcount.h:267 [inline]
kref_get include/linux/kref.h:45 [inline]
dvb_device_get drivers/media/dvb-core/dvbdev.c:641 [inline]
dvb_device_open+0x31b/0x360 drivers/media/dvb-core/dvbdev.c:116
chrdev_open+0x585/0x5f0 fs/char_dev.c:414
do_dentry_open+0x7f7/0xf90 fs/open.c:826
do_open fs/namei.c:3616 [inline]
path_openat+0x2718/0x2fb0 fs/namei.c:3750
do_filp_open+0x1df/0x400 fs/namei.c:3777
do_sys_openat2+0x14b/0x500 fs/open.c:1255
do_sys_open fs/open.c:1271 [inline]
__do_sys_openat fs/open.c:1287 [inline]
__se_sys_openat fs/open.c:1282 [inline]
__x64_sys_openat+0x135/0x160 fs/open.c:1282
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f15bbb8668e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007f15b9ddcb28 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f15b9ddd6c0 RCX: 00007f15bbb8668e
RDX: 0000000000000002 RSI: 00007f15b9ddcc00 RDI: ffffffffffffff9c
RBP: 00007f15b9ddcc00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: cccccccccccccccd
R13: 00007f15bbe3f218 R14: 00007f15bbe3f180 R15: 00007fff584b7c08
</TASK>