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2002:a05:6809:2c5:20b0:4ae:f5be:fe30 with SMTP id 5614622812f47-4aef5bf1d23mr263183b6e.18.1785481102215; Thu, 30 Jul 2026 23:58:22 -0700 (PDT) Date: Thu, 30 Jul 2026 23:58:22 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a6c478e.b5e7dbf9.21bf3.0008.GAE@google.com> Subject: [syzbot] [media?] memory leak in vidtv_psi_sdt_service_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: 4235cb24ec1e Merge tag 'vfs-7.2-rc5.fixes' of git://git.ke.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1199e6b9580000 kernel config: https://syzkaller.appspot.com/x/.config?x=ba7c2d1679fb08a2 dashboard link: https://syzkaller.appspot.com/bug?extid=070afba8f438130eca76 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=1048c49e580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1505c6b9580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/d2b93a579379/disk-4235cb24.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/907f0d615dfc/vmlinux-4235cb24.xz kernel image: https://storage.googleapis.com/syzbot-assets/f787f85b05b9/bzImage-4235cb24.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+070afba8f438130eca76@syzkaller.appspotmail.com BUG: memory leak unreferenced object 0xffff888114fee2c0 (size 32): comm "syz.0.17", pid 5955, jiffies 4294942049 hex dump (first 32 bytes): 08 80 fd 80 1b c0 ef fe 14 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 a633fa69): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4597 [inline] slab_alloc_node mm/slub.c:4917 [inline] __kmalloc_cache_noprof+0x356/0x440 mm/slub.c:5485 _kmalloc_noprof include/linux/slab.h:988 [inline] _kzalloc_noprof include/linux/slab.h:1309 [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 0xffff888114feefc0 (size 32): comm "syz.0.17", pid 5955, jiffies 4294942049 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 48 19 02 0c 40 42 f8 11 ........H...@B.. 81 88 ff ff 0a 60 42 f8 11 81 88 ff ff 00 00 00 .....`B......... backtrace (crc 9f5e821f): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4597 [inline] slab_alloc_node mm/slub.c:4917 [inline] __kmalloc_cache_noprof+0x356/0x440 mm/slub.c:5485 _kmalloc_noprof include/linux/slab.h:988 [inline] _kzalloc_noprof include/linux/slab.h:1309 [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 0xffff888114feefe0 (size 32): comm "syz.0.17", pid 5955, jiffies 4294942049 hex dump (first 32 bytes): 00 01 ef 40 06 00 00 23 59 59 80 8d 80 b5 b5 12 ...@...#YY...... 81 88 ff ff 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 8ccd5b03): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4597 [inline] slab_alloc_node mm/slub.c:4917 [inline] __kmalloc_cache_noprof+0x356/0x440 mm/slub.c:5485 _kmalloc_noprof include/linux/slab.h:988 [inline] _kzalloc_noprof include/linux/slab.h:1309 [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 BUG: memory leak unreferenced object 0xffff888111f842a0 (size 16): comm "syz.0.17", pid 5955, jiffies 4294942049 hex dump (first 16 bytes): 4c 69 6e 75 78 54 56 2e 6f 72 67 00 00 00 00 00 LinuxTV.org..... backtrace (crc 2e58d8e5): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4597 [inline] slab_alloc_node mm/slub.c:4917 [inline] __do_kmalloc_node mm/slub.c:5333 [inline] __kmalloc_node_track_caller_noprof+0x3d3/0x570 mm/slub.c:5471 __kmemdup_nul mm/util.c:64 [inline] kstrdup+0x3c/0x80 mm/util.c:84 vidtv_psi_network_name_desc_init+0xbe/0x110 drivers/media/test-drivers/vidtv/vidtv_psi.c:317 vidtv_psi_nit_table_init+0xa1/0x130 drivers/media/test-drivers/vidtv/vidtv_psi.c:1593 vidtv_channel_si_init+0x4bf/0x770 drivers/media/test-drivers/vidtv/vidtv_channel.c:453 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 0xffff888111f84220 (size 16): comm "syz.0.17", pid 5955, jiffies 4294942049 hex dump (first 16 bytes): 08 80 02 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc dcfaab59): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4597 [inline] slab_alloc_node mm/slub.c:4917 [inline] __kmalloc_cache_noprof+0x356/0x440 mm/slub.c:5485 _kmalloc_noprof include/linux/slab.h:988 [inline] _kzalloc_noprof include/linux/slab.h:1309 [inline] vidtv_psi_service_list_desc_init+0x7b/0x160 drivers/media/test-drivers/vidtv/vidtv_psi.c:345 vidtv_psi_nit_table_init+0xd1/0x130 drivers/media/test-drivers/vidtv/vidtv_psi.c:1601 vidtv_channel_si_init+0x4bf/0x770 drivers/media/test-drivers/vidtv/vidtv_channel.c:453 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 --- 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