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s10-20020a056e02216a00b0035feb203599mr386475ilv.2.1707030628194; Sat, 03 Feb 2024 23:10:28 -0800 (PST) Date: Sat, 03 Feb 2024 23:10:28 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000036e27e0610890a65@google.com> Subject: [syzbot] [net?] upstream boot error: KMSAN: uninit-value in stack_depot_save_flags From: syzbot To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: b555d191561a Merge tag 'perf-tools-fixes-for-v6.8-1-2024-0.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=11560a38180000 kernel config: https://syzkaller.appspot.com/x/.config?x=c11709bae75cc702 dashboard link: https://syzkaller.appspot.com/bug?extid=d3af3bd3dc5f4d43ba10 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/ab88ac39d951/disk-b555d191.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/53de6d54d856/vmlinux-b555d191.xz kernel image: https://storage.googleapis.com/syzbot-assets/0154e4e3e071/bzImage-b555d191.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+d3af3bd3dc5f4d43ba10@syzkaller.appspotmail.com io scheduler kyber registered io scheduler bfq registered input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 ACPI: button: Power Button [PWRF] input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1 ACPI: button: Sleep Button [SLPF] ioatdma: Intel(R) QuickData Technology Driver 5.00 ACPI: \_SB_.LNKC: Enabled at IRQ 11 virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver ACPI: \_SB_.LNKD: Enabled at IRQ 10 virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver ACPI: \_SB_.LNKB: Enabled at IRQ 10 virtio-pci 0000:00:06.0: virtio_pci: leaving for legacy driver virtio-pci 0000:00:07.0: virtio_pci: leaving for legacy driver N_HDLC line discipline registered with maxframe=4096 Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A 00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A 00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A 00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A Non-volatile memory driver v1.3 Linux agpgart interface v0.103 ACPI: bus type drm_connector registered [drm] Initialized vgem 1.0.0 20120112 for vgem on minor 0 [drm] Initialized vkms 1.0.0 20180514 for vkms on minor 1 Console: switching to colour frame buffer device 128x48 platform vkms: [drm] fb0: vkmsdrmfb frame buffer device usbcore: registered new interface driver udl brd: module loaded loop: module loaded zram: Added device: zram0 null_blk: disk nullb0 created null_blk: module loaded Guest personality initialized and is inactive VMCI host device registered (name=vmci, major=10, minor=118) Initialized host personality usbcore: registered new interface driver rtsx_usb usbcore: registered new interface driver viperboard usbcore: registered new interface driver dln2 usbcore: registered new interface driver pn533_usb nfcsim 0.2 initialized usbcore: registered new interface driver port100 usbcore: registered new interface driver nfcmrvl Loading iSCSI transport class v2.0-870. virtio_scsi virtio0: 1/0/0 default/read/poll queues scsi host0: Virtio SCSI HBA st: Version 20160209, fixed bufsize 32768, s/g segs 256 Rounding down aligned max_sectors from 4294967295 to 4294967288 db_root: cannot open: /etc/target ===================================================== BUG: KMSAN: uninit-value in __list_del_entry_valid_or_report+0x19e/0x490 lib/list_debug.c:52 __list_del_entry_valid_or_report+0x19e/0x490 lib/list_debug.c:52 __list_del_entry_valid include/linux/list.h:124 [inline] __list_del_entry include/linux/list.h:215 [inline] list_del include/linux/list.h:229 [inline] depot_pop_free lib/stackdepot.c:426 [inline] depot_alloc_stack lib/stackdepot.c:445 [inline] stack_depot_save_flags+0x3e9/0x7b0 lib/stackdepot.c:684 stack_depot_save+0x12/0x20 lib/stackdepot.c:722 ref_tracker_alloc+0x215/0x700 lib/ref_tracker.c:210 __netdev_tracker_alloc include/linux/netdevice.h:4147 [inline] netdev_hold include/linux/netdevice.h:4176 [inline] linkwatch_add_event net/core/link_watch.c:127 [inline] linkwatch_fire_event+0x32b/0x6d0 net/core/link_watch.c:292 netif_carrier_off+0xec/0x110 net/sched/sch_generic.c:601 bond_create+0x19d/0x2a0 drivers/net/bonding/bond_main.c:6396 bonding_init+0x1a7/0x2d0 drivers/net/bonding/bond_main.c:6474 do_one_initcall+0x216/0x960 init/main.c:1236 do_initcall_level+0x140/0x350 init/main.c:1298 do_initcalls+0xf0/0x1d0 init/main.c:1314 do_basic_setup+0x22/0x30 init/main.c:1333 kernel_init_freeable+0x300/0x4b0 init/main.c:1551 kernel_init+0x2f/0x7e0 init/main.c:1441 ret_from_fork+0x66/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 Uninit was created at: __alloc_pages+0x9a6/0xe00 mm/page_alloc.c:4590 alloc_pages_mpol+0x62b/0x9d0 mm/mempolicy.c:2133 alloc_pages+0x1be/0x1e0 mm/mempolicy.c:2204 stack_depot_save_flags+0x73e/0x7b0 lib/stackdepot.c:672 stack_depot_save+0x12/0x20 lib/stackdepot.c:722 ref_tracker_alloc+0x215/0x700 lib/ref_tracker.c:210 __netdev_tracker_alloc include/linux/netdevice.h:4147 [inline] netdev_hold+0xe2/0x120 include/linux/netdevice.h:4176 register_netdevice+0x1c34/0x2230 net/core/dev.c:10281 bond_create+0x138/0x2a0 drivers/net/bonding/bond_main.c:6390 bonding_init+0x1a7/0x2d0 drivers/net/bonding/bond_main.c:6474 do_one_initcall+0x216/0x960 init/main.c:1236 do_initcall_level+0x140/0x350 init/main.c:1298 do_initcalls+0xf0/0x1d0 init/main.c:1314 do_basic_setup+0x22/0x30 init/main.c:1333 kernel_init_freeable+0x300/0x4b0 init/main.c:1551 kernel_init+0x2f/0x7e0 init/main.c:1441 ret_from_fork+0x66/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.8.0-rc2-syzkaller-00419-gb555d191561a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 ===================================================== --- 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 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