Hello, syzbot found the following issue on:
HEAD commit: 4a26e7032d7d Merge tag 'core-bugs-2025-12-01' of git://git.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=116a9512580000 kernel config: https://syzkaller.appspot.com/x/.config?x=cbf343972ee89096 dashboard link: https://syzkaller.appspot.com/bug?extid=6e76aa21aaf2d8be6034 compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=179be192580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15cd92b4580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/3f4ff8b7d65f/disk-4a26e703.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/2fbb585ef1ac/vmlinux-4a26e703.xz kernel image: https://storage.googleapis.com/syzbot-assets/dfdc58db78d3/bzImage-4a26e703.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: [email protected] 2025/12/03 00:25:54 executed programs: 5 BUG: memory leak unreferenced object 0xffff88811a1e1100 (size 240): comm "kworker/u9:0", pid 51, jiffies 4294944590 hex dump (first 32 bytes): 90 50 50 42 81 88 ff ff 90 50 50 42 81 88 ff ff .PPB.....PPB.... 00 00 00 00 00 00 00 00 00 50 50 42 81 88 ff ff .........PPB.... backtrace (crc eed28d2d): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4983 [inline] slab_alloc_node mm/slub.c:5288 [inline] kmem_cache_alloc_noprof+0x397/0x5a0 mm/slub.c:5295 skb_clone+0xae/0x2b0 net/core/skbuff.c:2050 __skb_tstamp_tx+0x3a0/0x4c0 net/core/skbuff.c:5636 hci_conn_tx_queue+0x11c/0x1d0 net/bluetooth/hci_conn.c:3026 hci_send_conn_frame net/bluetooth/hci_core.c:3086 [inline] hci_sched_acl_pkt net/bluetooth/hci_core.c:3701 [inline] hci_sched_acl net/bluetooth/hci_core.c:3726 [inline] hci_tx_work+0x437/0x570 net/bluetooth/hci_core.c:3820 process_one_work+0x26b/0x620 kernel/workqueue.c:3263 process_scheduled_works kernel/workqueue.c:3346 [inline] worker_thread+0x2c4/0x4f0 kernel/workqueue.c:3427 kthread+0x15b/0x310 kernel/kthread.c:463 ret_from_fork+0x2af/0x2e0 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 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 [email protected]. 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
