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006d021491bc7-680f7e96326mr5908842eaf.5.1775505865496; Mon, 06 Apr 2026 13:04:25 -0700 (PDT) Date: Mon, 06 Apr 2026 13:04:25 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69d411c9.a70a0220.a26f2.003e.GAE@google.com> Subject: [syzbot] [media?] memory leak in vidtv_psi_short_event_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: 591cd656a1bf Linux 7.0-rc7 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=11ca55da580000 kernel config: https://syzkaller.appspot.com/x/.config?x=e2bba615ee79faa5 dashboard link: https://syzkaller.appspot.com/bug?extid=afc686a471d70896c5d9 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=127ad46a580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16cf33da580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/6b8983945f60/disk-591cd656.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/a97f51ce06d9/vmlinux-591cd656.xz kernel image: https://storage.googleapis.com/syzbot-assets/e945a74880b8/bzImage-591cd656.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+afc686a471d70896c5d9@syzkaller.appspotmail.com BUG: memory leak unreferenced object 0xffff8881145cb200 (size 64): comm "syz.0.17", pid 6104, jiffies 4294941873 hex dump (first 32 bytes): 0b 4c 75 64 77 69 67 20 76 61 6e 20 42 65 65 74 .Ludwig van Beet 68 6f 76 65 6e 3a 20 46 fc 72 20 45 6c 69 73 65 hoven: F.r Elise backtrace (crc 6d5386ce): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4543 [inline] slab_alloc_node mm/slub.c:4866 [inline] __do_kmalloc_node mm/slub.c:5259 [inline] __kmalloc_node_track_caller_noprof+0x3e0/0x5d0 mm/slub.c:5368 __kmemdup_nul mm/util.c:64 [inline] kstrdup+0x3c/0x80 mm/util.c:84 vidtv_psi_short_event_desc_init+0x1f0/0x220 drivers/media/test-drivers/vidtv/vidtv_psi.c:467 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: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: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+0xe2/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f BUG: memory leak unreferenced object 0xffff888127ff87a0 (size 32): comm "syz.0.17", pid 6104, jiffies 4294941873 hex dump (first 32 bytes): 08 80 fd 80 1b e0 83 ff 27 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 52407852): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4543 [inline] slab_alloc_node mm/slub.c:4866 [inline] __kmalloc_cache_noprof+0x377/0x480 mm/slub.c:5375 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:1441 vidtv_channel_sdt_serv_cat_into_new drivers/media/test-drivers/vidtv/vidtv_channel.c:229 [inline] vidtv_channel_si_init+0x230/0x750 drivers/media/test-drivers/vidtv/vidtv_channel.c:435 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+0xe2/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f BUG: memory leak unreferenced object 0xffff888127ff83e0 (size 32): comm "syz.0.17", pid 6104, jiffies 4294941873 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 48 19 02 0c 50 85 36 11 ........H...P.6. 81 88 ff ff 0a b0 82 36 11 81 88 ff ff 00 00 00 .......6........ backtrace (crc e8912ca1): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4543 [inline] slab_alloc_node mm/slub.c:4866 [inline] __kmalloc_cache_noprof+0x377/0x480 mm/slub.c:5375 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:288 vidtv_psi_desc_clone+0x137/0x160 drivers/media/test-drivers/vidtv/vidtv_psi.c:506 vidtv_channel_sdt_serv_cat_into_new drivers/media/test-drivers/vidtv/vidtv_channel.c:236 [inline] vidtv_channel_si_init+0x1d8/0x750 drivers/media/test-drivers/vidtv/vidtv_channel.c:435 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+0xe2/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f BUG: memory leak unreferenced object 0xffff888127ff81a0 (size 32): comm "syz.0.17", pid 6104, jiffies 4294941873 hex dump (first 32 bytes): 00 01 ee d0 18 00 00 23 59 59 80 8d 80 b0 6f 14 .......#YY....o. 81 88 ff ff 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 79354a12): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4543 [inline] slab_alloc_node mm/slub.c:4866 [inline] __kmalloc_cache_noprof+0x377/0x480 mm/slub.c:5375 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:1983 vidtv_channel_eit_event_cat_into_new drivers/media/test-drivers/vidtv/vidtv_channel.c:182 [inline] vidtv_channel_si_init+0x31b/0x750 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+0xe2/0xf80 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