------------[ cut here ]------------
refcount_t: saturated; leaking memory.
WARNING: CPU: 1 PID: 14783 at lib/refcount.c:22 refcount_warn_saturate+0x153/0x1a0 lib/refcount.c:22
Modules linked in:
CPU: 1 PID: 14783 Comm: syz.0.2363 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 20 ff de 8a e8 19 6f 38 fd 0f 0b eb 8c e8 20 d8 6c fd c6 05 d1 5b f7 09 01 48 c7 c7 20 ff de 8a e8 fd 6e 38 fd <0f> 0b e9 6d ff ff ff e8 01 d8 6c fd c6 05 b6 5b f7 09 01 48 c7 c7
RSP: 0018:ffffc9000c3677d8 EFLAGS: 00010246
RAX: 6c4588023da63600 RBX: 0000000000000001 RCX: 0000000000080000
RDX: ffffc9000edd1000 RSI: 0000000000003e8b RDI: 0000000000003e8c
RBP: 00000000ffffffff R08: ffff8880b8f279db R09: 1ffff110171e4f3b
R10: dffffc0000000000 R11: ffffed10171e4f3c R12: ffff888146f86e18
R13: ffffffff96c6a820 R14: 0000000000000001 R15: ffff888146f86e00
FS: 00007fe22d1986c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2ffe04d848 CR3: 0000000074044000 CR4: 00000000003526e0
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:631 [inline]
dvb_device_open+0x31b/0x360 drivers/media/dvb-core/dvbdev.c:106
chrdev_open+0x585/0x5f0 fs/char_dev.c:414
do_dentry_open+0x7dd/0x10b0 fs/open.c:882
do_open fs/namei.c:3634 [inline]
path_openat+0x2674/0x2f10 fs/namei.c:3791
do_filp_open+0x1ee/0x420 fs/namei.c:3818
do_sys_openat2+0x14b/0x4f0 fs/open.c:1320
do_sys_open fs/open.c:1336 [inline]
__do_sys_openat fs/open.c:1352 [inline]
__se_sys_openat fs/open.c:1347 [inline]
__x64_sys_openat+0x135/0x160 fs/open.c:1347
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fe22c35e68e
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:00007fe22d197b28 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fe22d1986c0 RCX: 00007fe22c35e68e
RDX: 0000000000000002 RSI: 00007fe22d197c00 RDI: ffffffffffffff9c
RBP: 00007fe22d197c00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: cccccccccccccccd
R13: 00007fe22c626128 R14: 00007fe22c626090 R15: 00007ffc34ae0668
</TASK>