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006d021491bc7-66e74397850mr5444441eaf.75.1770696567096; Mon, 09 Feb 2026 20:09:27 -0800 (PST) Date: Mon, 09 Feb 2026 20:09:27 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <698aaf77.050a0220.1ad825.0033.GAE@google.com> Subject: [syzbot] [media?] memory leak in vidtv_psi_service_desc_init From: syzbot To: dwlsalmeida@gmail.com, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 05f7e89ab973 Linux 6.19 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1143533a580000 kernel config: https://syzkaller.appspot.com/x/.config?x=9d7d0fbecb37bff8 dashboard link: https://syzkaller.appspot.com/bug?extid=639ebc6ec75e96674741 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=17ed6a52580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1587465a580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/1ad63df9059c/disk-05f7e89a.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/4f2b44c1d6fd/vmlinux-05f7e89a.xz kernel image: https://storage.googleapis.com/syzbot-assets/9736a52697bc/bzImage-05f7e89a.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+639ebc6ec75e96674741@syzkaller.appspotmail.com BUG: memory leak unreferenced object 0xffff888145b50820 (size 32): comm "syz.0.17", pid 6068, jiffies 4294944486 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 48 19 02 0c 60 fd 02 09 ........H...`... 81 88 ff ff 0a 70 fd 02 09 81 88 ff ff 00 00 00 .....p.......... backtrace (crc 90a0c7d4): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4958 [inline] slab_alloc_node mm/slub.c:5263 [inline] __kmalloc_cache_noprof+0x41a/0x590 mm/slub.c:5775 kmalloc_noprof include/linux/slab.h:957 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] vidtv_psi_service_desc_init+0x74/0x1b0 drivers/media/test-drivers/vidtv/vidtv_psi.c:288 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:524 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:655 dvb_dmxdev_filter_start+0xd8/0x440 drivers/media/dvb-core/dmxdev.c:766 dvb_dmxdev_pes_filter_set drivers/media/dvb-core/dmxdev.c:963 [inline] dvb_demux_do_ioctl+0x7a2/0x7d0 drivers/media/dvb-core/dmxdev.c:1077 dvb_usercopy+0x116/0x2d0 drivers/media/dvb-core/dvbdev.c:999 dvb_demux_ioctl+0x29/0x40 drivers/media/dvb-core/dmxdev.c:1186 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+0xa4/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f BUG: memory leak unreferenced object 0xffff88810902fd70 (size 16): comm "syz.0.17", pid 6068, jiffies 4294944486 hex dump (first 16 bytes): 0b 42 65 65 74 68 6f 76 65 6e 00 00 00 00 00 00 .Beethoven...... backtrace (crc e88d86b): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4958 [inline] slab_alloc_node mm/slub.c:5263 [inline] __do_kmalloc_node mm/slub.c:5656 [inline] __kmalloc_node_track_caller_noprof+0x47b/0x690 mm/slub.c:5768 __kmemdup_nul mm/util.c:64 [inline] kstrdup+0x3c/0x80 mm/util.c:84 vidtv_psi_service_desc_init+0x17a/0x1b0 drivers/media/test-drivers/vidtv/vidtv_psi.c:305 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:524 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:655 dvb_dmxdev_filter_start+0xd8/0x440 drivers/media/dvb-core/dmxdev.c:766 dvb_dmxdev_pes_filter_set drivers/media/dvb-core/dmxdev.c:963 [inline] dvb_demux_do_ioctl+0x7a2/0x7d0 drivers/media/dvb-core/dmxdev.c:1077 dvb_usercopy+0x116/0x2d0 drivers/media/dvb-core/dvbdev.c:999 dvb_demux_ioctl+0x29/0x40 drivers/media/dvb-core/dmxdev.c:1186 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+0xa4/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f BUG: memory leak unreferenced object 0xffff88810902fd60 (size 16): comm "syz.0.17", pid 6068, jiffies 4294944486 hex dump (first 16 bytes): 0b 4c 69 6e 75 78 54 56 2e 6f 72 67 00 00 00 00 .LinuxTV.org.... backtrace (crc b60e4fc0): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4958 [inline] slab_alloc_node mm/slub.c:5263 [inline] __do_kmalloc_node mm/slub.c:5656 [inline] __kmalloc_node_track_caller_noprof+0x47b/0x690 mm/slub.c:5768 __kmemdup_nul mm/util.c:64 [inline] kstrdup+0x3c/0x80 mm/util.c:84 vidtv_psi_service_desc_init+0x130/0x1b0 drivers/media/test-drivers/vidtv/vidtv_psi.c:313 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:524 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:655 dvb_dmxdev_filter_start+0xd8/0x440 drivers/media/dvb-core/dmxdev.c:766 dvb_dmxdev_pes_filter_set drivers/media/dvb-core/dmxdev.c:963 [inline] dvb_demux_do_ioctl+0x7a2/0x7d0 drivers/media/dvb-core/dmxdev.c:1077 dvb_usercopy+0x116/0x2d0 drivers/media/dvb-core/dvbdev.c:999 dvb_demux_ioctl+0x29/0x40 drivers/media/dvb-core/dmxdev.c:1186 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+0xa4/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f BUG: memory leak unreferenced object 0xffff888145b502c0 (size 32): comm "syz.0.17", pid 6068, jiffies 4294944486 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:4958 [inline] slab_alloc_node mm/slub.c:5263 [inline] __do_kmalloc_node mm/slub.c:5656 [inline] __kmalloc_noprof+0x465/0x680 mm/slub.c:5669 kmalloc_noprof include/linux/slab.h:961 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] vidtv_psi_registration_desc_init+0x2d/0xd0 drivers/media/test-drivers/vidtv/vidtv_psi.c:337 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:524 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:655 dvb_dmxdev_filter_start+0xd8/0x440 drivers/media/dvb-core/dmxdev.c:766 dvb_dmxdev_pes_filter_set drivers/media/dvb-core/dmxdev.c:963 [inline] dvb_demux_do_ioctl+0x7a2/0x7d0 drivers/media/dvb-core/dmxdev.c:1077 dvb_usercopy+0x116/0x2d0 drivers/media/dvb-core/dvbdev.c:999 dvb_demux_ioctl+0x29/0x40 drivers/media/dvb-core/dmxdev.c:1186 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+0xa4/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f connection error: failed to recv *flatrpc.ExecutorMessageRawT: EOF --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup