memory leak in vidtv_psi_service_desc_init

Status: fixed on 2026/05/21 07:49
Subsystems: media
[Documentation on labels]
Reported-by: syzbot+639ebc6ec75e96674741@syzkaller.appspotmail.com
Fix commit: a0e5a598fe9a media: vidtv: fix nfeeds state corruption on start_streaming failure
First crash: 163d, last: 80d
▶ ▼ ✨ AI Jobs (1)
ID Workflow Result Correct Bug Created Started Finished Revision Error
0adf8e59-8adf-4f15-9ba7-7c9f9c7c8c19 assessment-security 💥 memory leak in vidtv_psi_service_desc_init 2026/05/14 13:46 2026/05/14 13:46 2026/05/14 13:47 6ccb967e465e832a7bfd7a116ad00d52a0923a5d 
failed to run ["git" "pull" "origin" "HEAD" "--depth=1" "--allow-unrelated-histories"]: exit status 128
From /app/workdir/repo/linux
 * branch                HEAD       -> FETCH_HEAD
Updating files:  ...
truncated to first 200 bytes; open job for full error
▶ ▼ Discussions (2)
Title Replies (including bot) Last reply
[PATCH] media: vidtv: fix nfeeds state corruption on start_streaming failure 1 (1) 2026/03/01 21:07
[syzbot] [media?] memory leak in vidtv_psi_service_desc_init 0 (1) 2026/02/10 04:09
▶ ▼ Similar bugs (1)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream memory leak in vidtv_psi_service_desc_init (2) prio:low media 3 C 98 8h06m 58d 0/29 upstream: reported C repro on 2026/05/26 02:49
▶ ▼ Last patch testing requests (1)
Created Duration User Patch Repo Result
2026/02/24 13:52 12m retest repro upstream report log

Sample crash report:
BUG: memory leak
unreferenced object 0xffff888113019e80 (size 32):
  comm "syz.0.17", pid 5946, jiffies 4294942608
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 48 19 02 0c d0 3b 6c 2c  ........H....;l,
    81 88 ff ff 0a e0 3b 6c 2c 81 88 ff ff 00 00 00  ......;l,.......
  backtrace (crc e6c4fea4):
    kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
    slab_post_alloc_hook mm/slub.c:4574 [inline]
    slab_alloc_node mm/slub.c:4898 [inline]
    __kmalloc_cache_noprof+0x371/0x480 mm/slub.c:5414
    kmalloc_noprof include/linux/slab.h:950 [inline]
    kzalloc_noprof include/linux/slab.h:1188 [inline]
    vidtv_psi_service_desc_init+0x74/0x1b0 drivers/media/test-drivers/vidtv/vidtv_psi.c:233
    vidtv_channel_s302m_init+0xb1/0x2a0 drivers/media/test-drivers/vidtv/vidtv_channel.c:83
    vidtv_channels_init+0x1b/0x40 drivers/media/test-drivers/vidtv/vidtv_channel.c:528
    vidtv_mux_init+0x372/0x390 drivers/media/test-drivers/vidtv/vidtv_mux.c:515
    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+0xee/0xf80 arch/x86/entry/syscall_64.c:94
    entry_SYSCALL_64_after_hwframe+0x77/0x7f

BUG: memory leak
unreferenced object 0xffff8881130196e0 (size 32):
  comm "syz.0.17", pid 5946, jiffies 4294942608
  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:4574 [inline]
    slab_alloc_node mm/slub.c:4898 [inline]
    __do_kmalloc_node mm/slub.c:5294 [inline]
    __kmalloc_noprof+0x3b7/0x550 mm/slub.c:5307
    kmalloc_noprof include/linux/slab.h:954 [inline]
    kzalloc_noprof include/linux/slab.h:1188 [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+0x372/0x390 drivers/media/test-drivers/vidtv/vidtv_mux.c:515
    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+0xee/0xf80 arch/x86/entry/syscall_64.c:94
    entry_SYSCALL_64_after_hwframe+0x77/0x7f

BUG: memory leak
unreferenced object 0xffff888113019760 (size 32):
  comm "syz.0.17", pid 5946, jiffies 4294942608
  hex dump (first 32 bytes):
    08 80 fd 80 1b 40 96 01 13 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 46113653):
    kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
    slab_post_alloc_hook mm/slub.c:4574 [inline]
    slab_alloc_node mm/slub.c:4898 [inline]
    __kmalloc_cache_noprof+0x371/0x480 mm/slub.c:5414
    kmalloc_noprof include/linux/slab.h:950 [inline]
    kzalloc_noprof include/linux/slab.h:1188 [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:519
    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+0xee/0xf80 arch/x86/entry/syscall_64.c:94
    entry_SYSCALL_64_after_hwframe+0x77/0x7f

BUG: memory leak
unreferenced object 0xffff888113019640 (size 32):
  comm "syz.0.17", pid 5946, jiffies 4294942608
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 48 19 02 0c 80 3b 6c 2c  ........H....;l,
    81 88 ff ff 0a 90 3b 6c 2c 81 88 ff ff 00 00 00  ......;l,.......
  backtrace (crc cdd8a764):
    kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
    slab_post_alloc_hook mm/slub.c:4574 [inline]
    slab_alloc_node mm/slub.c:4898 [inline]
    __kmalloc_cache_noprof+0x371/0x480 mm/slub.c:5414
    kmalloc_noprof include/linux/slab.h:950 [inline]
    kzalloc_noprof include/linux/slab.h:1188 [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:519
    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+0xee/0xf80 arch/x86/entry/syscall_64.c:94
    entry_SYSCALL_64_after_hwframe+0x77/0x7f

BUG: memory leak
unreferenced object 0xffff888113019ee0 (size 32):
  comm "syz.0.17", pid 5946, jiffies 4294942608
  hex dump (first 32 bytes):
    00 01 ee eb 23 00 00 23 59 59 80 8d 00 f0 f5 2c  ....#..#YY.....,
    81 88 ff ff 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace (crc 6b0edf26):
    kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
    slab_post_alloc_hook mm/slub.c:4574 [inline]
    slab_alloc_node mm/slub.c:4898 [inline]
    __kmalloc_cache_noprof+0x371/0x480 mm/slub.c:5414
    kmalloc_noprof include/linux/slab.h:950 [inline]
    kzalloc_noprof include/linux/slab.h:1188 [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:519
    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+0xee/0xf80 arch/x86/entry/syscall_64.c:94
    entry_SYSCALL_64_after_hwframe+0x77/0x7f

connection error: failed to recv *flatrpc.ExecutorMessageRawT: EOF

Crashes (13):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/05/03 23:08 upstream f377d0025eb0 a0d91488 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-gce-leak memory leak in vidtv_psi_service_desc_init
2026/05/02 21:23 upstream f1a5e78a55eb a0d91488 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-gce-leak memory leak in vidtv_psi_service_desc_init
2026/05/02 20:58 upstream f1a5e78a55eb a0d91488 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-gce-leak memory leak in vidtv_psi_service_desc_init
2026/04/14 20:40 upstream d60bc1401583 362d1323 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-gce-leak memory leak in vidtv_psi_service_desc_init
2026/04/14 19:45 upstream d60bc1401583 362d1323 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-gce-leak memory leak in vidtv_psi_service_desc_init
2026/04/06 19:30 upstream 591cd656a1bf 4440e7c2 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-gce-leak memory leak in vidtv_psi_service_desc_init
2026/04/06 19:18 upstream 591cd656a1bf 4440e7c2 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-gce-leak memory leak in vidtv_psi_service_desc_init
2026/04/06 18:47 upstream 591cd656a1bf 4440e7c2 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-gce-leak memory leak in vidtv_psi_service_desc_init
2026/04/06 18:28 upstream 591cd656a1bf 4440e7c2 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-gce-leak memory leak in vidtv_psi_service_desc_init
2026/04/06 18:22 upstream 591cd656a1bf 4440e7c2 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-gce-leak memory leak in vidtv_psi_service_desc_init
2026/03/29 13:07 upstream cbfffcca2bf0 356bdfc9 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-gce-leak memory leak in vidtv_psi_service_desc_init
2026/03/28 23:03 upstream be762d8b6dd7 356bdfc9 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-gce-leak memory leak in vidtv_psi_service_desc_init
2026/02/09 22:03 upstream 05f7e89ab973 df949cd9 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-gce-leak memory leak in vidtv_psi_service_desc_init
* Struck through repros no longer work on HEAD.