[parent not found: <CAAPZZwM_LLeyQS9ptNHCdzDtM7EjvxMs5QwBXxoEXFdj+v9XZA@mail.gmail.com>]
* [syzbot] [media?] memory leak in vidtv_psi_registration_desc_init
@ 2026-07-14 9:40 syzbot
0 siblings, 0 replies; 3+ messages in thread
From: syzbot @ 2026-07-14 9:40 UTC (permalink / raw)
To: dwlsalmeida, linux-kernel, linux-media, mchehab, syzkaller-bugs
Hello,
syzbot found the following issue on:
HEAD commit: 2c7c88a412aa Merge tag 'net-7.2-rc3' of git://git.kernel.o..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=10c32346580000
kernel config: https://syzkaller.appspot.com/x/.config?x=b80376788da8bcda
dashboard link: https://syzkaller.appspot.com/bug?extid=e9a1f5e196de6663631b
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=162a7f39580000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=158b4432580000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/a14b4cfab39c/disk-2c7c88a4.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/66526931636d/vmlinux-2c7c88a4.xz
kernel image: https://storage.googleapis.com/syzbot-assets/c6fa9bcd2f12/bzImage-2c7c88a4.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+e9a1f5e196de6663631b@syzkaller.appspotmail.com
BUG: memory leak
unreferenced object 0xffff888111e282c0 (size 32):
comm "syz.0.17", pid 5937, jiffies 4294942991
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 05 04 42 53 53 44 00 00 ..........BSSD..
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace (crc 168dca61):
kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
slab_post_alloc_hook mm/slub.c:4625 [inline]
slab_alloc_node mm/slub.c:4945 [inline]
__do_kmalloc_node mm/slub.c:5361 [inline]
__kmalloc_noprof+0x3bf/0x550 mm/slub.c:5387
_kmalloc_noprof include/linux/slab.h:973 [inline]
_kzalloc_noprof include/linux/slab.h:1290 [inline]
vidtv_psi_registration_desc_init+0x2d/0xd0 drivers/media/test-drivers/vidtv/vidtv_psi.c:282
vidtv_channel_s302m_init+0x132/0x2a0 drivers/media/test-drivers/vidtv/vidtv_channel.c:107
vidtv_channels_init+0x1b/0x40 drivers/media/test-drivers/vidtv/vidtv_channel.c:528
vidtv_mux_init+0x377/0x390 drivers/media/test-drivers/vidtv/vidtv_mux.c:521
vidtv_start_streaming drivers/media/test-drivers/vidtv/vidtv_bridge.c:194 [inline]
vidtv_start_feed+0x1d4/0x260 drivers/media/test-drivers/vidtv/vidtv_bridge.c:239
dmx_ts_feed_start_filtering+0x8e/0x130 drivers/media/dvb-core/dvb_demux.c:747
dvb_dmxdev_start_feed+0x11c/0x170 drivers/media/dvb-core/dmxdev.c:658
dvb_dmxdev_filter_start+0xd8/0x440 drivers/media/dvb-core/dmxdev.c:769
dvb_demux_do_ioctl+0x297/0x7d0 drivers/media/dvb-core/dmxdev.c:1065
dvb_usercopy+0x116/0x2d0 drivers/media/dvb-core/dvbdev.c:996
dvb_demux_ioctl+0x29/0x40 drivers/media/dvb-core/dmxdev.c:1201
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:597 [inline]
__se_sys_ioctl fs/ioctl.c:583 [inline]
__x64_sys_ioctl+0xf4/0x140 fs/ioctl.c:583
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf8/0x610 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
BUG: memory leak
unreferenced object 0xffff888111ddb450 (size 8):
comm "syz.0.17", pid 5937, jiffies 4294942991
hex dump (first 8 bytes):
65 6e 67 00 00 00 00 00 eng.....
backtrace (crc 5673a685):
kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
slab_post_alloc_hook mm/slub.c:4625 [inline]
slab_alloc_node mm/slub.c:4945 [inline]
__do_kmalloc_node mm/slub.c:5361 [inline]
__kmalloc_node_track_caller_noprof+0x3d3/0x570 mm/slub.c:5497
__kmemdup_nul mm/util.c:64 [inline]
kstrdup+0x3c/0x80 mm/util.c:84
vidtv_psi_short_event_desc_init+0xf3/0x220 drivers/media/test-drivers/vidtv/vidtv_psi.c:407
vidtv_channel_s302m_init+0x1c2/0x2a0 drivers/media/test-drivers/vidtv/vidtv_channel.c:124
vidtv_channels_init+0x1b/0x40 drivers/media/test-drivers/vidtv/vidtv_channel.c:528
vidtv_mux_init+0x377/0x390 drivers/media/test-drivers/vidtv/vidtv_mux.c:521
vidtv_start_streaming drivers/media/test-drivers/vidtv/vidtv_bridge.c:194 [inline]
vidtv_start_feed+0x1d4/0x260 drivers/media/test-drivers/vidtv/vidtv_bridge.c:239
dmx_ts_feed_start_filtering+0x8e/0x130 drivers/media/dvb-core/dvb_demux.c:747
dvb_dmxdev_start_feed+0x11c/0x170 drivers/media/dvb-core/dmxdev.c:658
dvb_dmxdev_filter_start+0xd8/0x440 drivers/media/dvb-core/dmxdev.c:769
dvb_demux_do_ioctl+0x297/0x7d0 drivers/media/dvb-core/dmxdev.c:1065
dvb_usercopy+0x116/0x2d0 drivers/media/dvb-core/dvbdev.c:996
dvb_demux_ioctl+0x29/0x40 drivers/media/dvb-core/dmxdev.c:1201
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:597 [inline]
__se_sys_ioctl fs/ioctl.c:583 [inline]
__x64_sys_ioctl+0xf4/0x140 fs/ioctl.c:583
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf8/0x610 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
BUG: memory leak
unreferenced object 0xffff888111e28ce0 (size 32):
comm "syz.0.17", pid 5937, jiffies 4294942991
hex dump (first 32 bytes):
08 80 fd 80 1b 00 81 e2 11 81 88 ff ff 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace (crc dcdc23d2):
kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
slab_post_alloc_hook mm/slub.c:4625 [inline]
slab_alloc_node mm/slub.c:4945 [inline]
__kmalloc_cache_noprof+0x356/0x440 mm/slub.c:5511
_kmalloc_noprof include/linux/slab.h:969 [inline]
_kzalloc_noprof include/linux/slab.h:1290 [inline]
vidtv_psi_sdt_service_init+0x32/0xa0 drivers/media/test-drivers/vidtv/vidtv_psi.c:1386
vidtv_channel_sdt_serv_cat_into_new drivers/media/test-drivers/vidtv/vidtv_channel.c:229 [inline]
vidtv_channel_si_init+0x22f/0x770 drivers/media/test-drivers/vidtv/vidtv_channel.c:439
vidtv_mux_init+0x115/0x390 drivers/media/test-drivers/vidtv/vidtv_mux.c:525
vidtv_start_streaming drivers/media/test-drivers/vidtv/vidtv_bridge.c:194 [inline]
vidtv_start_feed+0x1d4/0x260 drivers/media/test-drivers/vidtv/vidtv_bridge.c:239
dmx_ts_feed_start_filtering+0x8e/0x130 drivers/media/dvb-core/dvb_demux.c:747
dvb_dmxdev_start_feed+0x11c/0x170 drivers/media/dvb-core/dmxdev.c:658
dvb_dmxdev_filter_start+0xd8/0x440 drivers/media/dvb-core/dmxdev.c:769
dvb_demux_do_ioctl+0x297/0x7d0 drivers/media/dvb-core/dmxdev.c:1065
dvb_usercopy+0x116/0x2d0 drivers/media/dvb-core/dvbdev.c:996
dvb_demux_ioctl+0x29/0x40 drivers/media/dvb-core/dmxdev.c:1201
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:597 [inline]
__se_sys_ioctl fs/ioctl.c:583 [inline]
__x64_sys_ioctl+0xf4/0x140 fs/ioctl.c:583
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf8/0x610 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
BUG: memory leak
unreferenced object 0xffff888111e28100 (size 32):
comm "syz.0.17", pid 5937, jiffies 4294942991
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 48 19 02 0c 80 33 83 03 ........H....3..
81 88 ff ff 0a 30 9f 30 10 81 88 ff ff 00 00 00 .....0.0........
backtrace (crc 844dd5c4):
kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
slab_post_alloc_hook mm/slub.c:4625 [inline]
slab_alloc_node mm/slub.c:4945 [inline]
__kmalloc_cache_noprof+0x356/0x440 mm/slub.c:5511
_kmalloc_noprof include/linux/slab.h:969 [inline]
_kzalloc_noprof include/linux/slab.h:1290 [inline]
vidtv_psi_service_desc_init+0x74/0x1b0 drivers/media/test-drivers/vidtv/vidtv_psi.c:233
vidtv_psi_desc_clone+0x137/0x160 drivers/media/test-drivers/vidtv/vidtv_psi.c:451
vidtv_channel_sdt_serv_cat_into_new drivers/media/test-drivers/vidtv/vidtv_channel.c:236 [inline]
vidtv_channel_si_init+0x1d7/0x770 drivers/media/test-drivers/vidtv/vidtv_channel.c:439
vidtv_mux_init+0x115/0x390 drivers/media/test-drivers/vidtv/vidtv_mux.c:525
vidtv_start_streaming drivers/media/test-drivers/vidtv/vidtv_bridge.c:194 [inline]
vidtv_start_feed+0x1d4/0x260 drivers/media/test-drivers/vidtv/vidtv_bridge.c:239
dmx_ts_feed_start_filtering+0x8e/0x130 drivers/media/dvb-core/dvb_demux.c:747
dvb_dmxdev_start_feed+0x11c/0x170 drivers/media/dvb-core/dmxdev.c:658
dvb_dmxdev_filter_start+0xd8/0x440 drivers/media/dvb-core/dmxdev.c:769
dvb_demux_do_ioctl+0x297/0x7d0 drivers/media/dvb-core/dmxdev.c:1065
dvb_usercopy+0x116/0x2d0 drivers/media/dvb-core/dvbdev.c:996
dvb_demux_ioctl+0x29/0x40 drivers/media/dvb-core/dmxdev.c:1201
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:597 [inline]
__se_sys_ioctl fs/ioctl.c:583 [inline]
__x64_sys_ioctl+0xf4/0x140 fs/ioctl.c:583
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf8/0x610 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
BUG: memory leak
unreferenced object 0xffff888111e28000 (size 32):
comm "syz.0.17", pid 5937, jiffies 4294942991
hex dump (first 32 bytes):
00 01 ef 2f 09 00 00 23 59 59 80 8d c0 17 cd 14 .../...#YY......
81 88 ff ff 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace (crc fd542bd4):
kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
slab_post_alloc_hook mm/slub.c:4625 [inline]
slab_alloc_node mm/slub.c:4945 [inline]
__kmalloc_cache_noprof+0x356/0x440 mm/slub.c:5511
_kmalloc_noprof include/linux/slab.h:969 [inline]
_kzalloc_noprof include/linux/slab.h:1290 [inline]
vidtv_psi_eit_event_init+0x6d/0x1b0 drivers/media/test-drivers/vidtv/vidtv_psi.c:1928
vidtv_channel_eit_event_cat_into_new drivers/media/test-drivers/vidtv/vidtv_channel.c:182 [inline]
vidtv_channel_si_init+0x31d/0x770 drivers/media/test-drivers/vidtv/vidtv_channel.c:443
vidtv_mux_init+0x115/0x390 drivers/media/test-drivers/vidtv/vidtv_mux.c:525
vidtv_start_streaming drivers/media/test-drivers/vidtv/vidtv_bridge.c:194 [inline]
vidtv_start_feed+0x1d4/0x260 drivers/media/test-drivers/vidtv/vidtv_bridge.c:239
dmx_ts_feed_start_filtering+0x8e/0x130 drivers/media/dvb-core/dvb_demux.c:747
dvb_dmxdev_start_feed+0x11c/0x170 drivers/media/dvb-core/dmxdev.c:658
dvb_dmxdev_filter_start+0xd8/0x440 drivers/media/dvb-core/dmxdev.c:769
dvb_demux_do_ioctl+0x297/0x7d0 drivers/media/dvb-core/dmxdev.c:1065
dvb_usercopy+0x116/0x2d0 drivers/media/dvb-core/dvbdev.c:996
dvb_demux_ioctl+0x29/0x40 drivers/media/dvb-core/dmxdev.c:1201
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:597 [inline]
__se_sys_ioctl fs/ioctl.c:583 [inline]
__x64_sys_ioctl+0xf4/0x140 fs/ioctl.c:583
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf8/0x610 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
connection error: failed to recv *flatrpc.ExecutorMessageRawT: EOF
---
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If the report is already addressed, let syzbot know by replying with:
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#syz undup
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2026-07-14 14:41 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
[not found] <alYpF16VgFsB0mRU@michalis-linux>
2026-07-14 14:41 ` [syzbot] [media?] memory leak in vidtv_psi_registration_desc_init syzbot
[not found] <CAAPZZwM_LLeyQS9ptNHCdzDtM7EjvxMs5QwBXxoEXFdj+v9XZA@mail.gmail.com>
2026-07-14 14:10 ` syzbot
2026-07-14 9:40 syzbot
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