ci2 starts bisection 2025-06-29 23:28:48.317240752 +0000 UTC m=+177928.023161530 bisecting fixing commit since e5e5644ea27f86a29c84df744a01ea7de65ef800 building syzkaller on f00eed24f2a1332b07fef1a353a439133978d97b ensuring issue is reproducible on original commit e5e5644ea27f86a29c84df744a01ea7de65ef800 testing commit e5e5644ea27f86a29c84df744a01ea7de65ef800 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5e35e6cec03ce67f90cfe9994f1a26ec37befb364a54900a94e67eed50bf552a run #0: crashed: KASAN: use-after-free Read in macsec_get_iflink run #1: crashed: KASAN: use-after-free Read in macsec_get_iflink run #2: crashed: KASAN: use-after-free Read in macsec_get_iflink run #3: crashed: KASAN: use-after-free Read in macsec_get_iflink run #4: crashed: KASAN: use-after-free Read in macsec_get_iflink run #5: crashed: KASAN: use-after-free Read in macsec_get_iflink run #6: crashed: KASAN: use-after-free Read in macsec_get_iflink run #7: crashed: KASAN: use-after-free Read in macsec_get_iflink run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: KASAN: use-after-free Read in macsec_get_iflink, types: [KASAN] check whether we can drop unnecessary instrumentation disabling configs for [UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit e5e5644ea27f86a29c84df744a01ea7de65ef800 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9bbb454ed6ae9e34dd81dd19b8fec7e4529bb8fd77d37b543e840523779898f4 run #0: crashed: KASAN: use-after-free Read in macsec_get_iflink run #1: crashed: KASAN: use-after-free Read in macsec_get_iflink run #2: crashed: KASAN: use-after-free Read in macsec_get_iflink run #3: crashed: KASAN: use-after-free Read in macsec_get_iflink run #4: crashed: KASAN: use-after-free Read in macsec_get_iflink run #5: crashed: KASAN: use-after-free Read in macsec_get_iflink run #6: crashed: KASAN: use-after-free Read in macsec_get_iflink run #7: crashed: KASAN: use-after-free Read in macsec_get_iflink run #8: crashed: KASAN: use-after-free Read in macsec_get_iflink run #9: crashed: KASAN: use-after-free Read in macsec_get_iflink run #10: crashed: KASAN: use-after-free Read in macsec_get_iflink run #11: OK run #12: crashed: KASAN: use-after-free Read in macsec_get_iflink run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: KASAN: use-after-free Read in macsec_get_iflink, types: [KASAN] the bug reproduces without the instrumentation disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG LOCKDEP], they are not needed kconfig minimization: base=4788 full=6020 leaves diff=245 split chunks (needed=false): <245> split chunk #0 of len 245 into 5 parts testing without sub-chunk 1/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit e5e5644ea27f86a29c84df744a01ea7de65ef800 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 38de9f76a14b785712ff1ed405c50aea455fcb333645b5fbdd9c130cc7ca00f2 run #0: crashed: KASAN: use-after-free Read in macsec_get_iflink run #1: crashed: KASAN: use-after-free Read in macsec_get_iflink run #2: crashed: KASAN: use-after-free Read in macsec_get_iflink run #3: crashed: KASAN: use-after-free Read in macsec_get_iflink run #4: crashed: KASAN: use-after-free Read in macsec_get_iflink run #5: crashed: KASAN: use-after-free Read in macsec_get_iflink run #6: crashed: KASAN: use-after-free Read in macsec_get_iflink run #7: crashed: KASAN: use-after-free Read in macsec_get_iflink run #8: crashed: KASAN: use-after-free Read in macsec_get_iflink run #9: crashed: KASAN: use-after-free Read in macsec_get_iflink run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: KASAN: use-after-free Read in macsec_get_iflink, types: [KASAN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit e5e5644ea27f86a29c84df744a01ea7de65ef800 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: dbaefc1d628dbac40d08dd76ed5df9a0fdf9f90bf7003c640544eb51266f3e1b run #0: crashed: KASAN: use-after-free Read in macsec_get_iflink run #1: crashed: KASAN: use-after-free Read in macsec_get_iflink run #2: crashed: KASAN: use-after-free Read in macsec_get_iflink run #3: crashed: KASAN: use-after-free Read in macsec_get_iflink run #4: crashed: KASAN: use-after-free Read in macsec_get_iflink run #5: crashed: KASAN: use-after-free Read in macsec_get_iflink run #6: crashed: KASAN: use-after-free Read in macsec_get_iflink run #7: crashed: KASAN: use-after-free Read in macsec_get_iflink run #8: crashed: KASAN: use-after-free Read in macsec_get_iflink run #9: crashed: KASAN: use-after-free Read in macsec_get_iflink run #10: crashed: KASAN: use-after-free Read in macsec_get_iflink run #11: crashed: KASAN: use-after-free Read in macsec_get_iflink run #12: crashed: KASAN: use-after-free Read in macsec_get_iflink run #13: crashed: KASAN: use-after-free Read in macsec_get_iflink run #14: crashed: KASAN: use-after-free Read in macsec_get_iflink run #15: crashed: KASAN: use-after-free Read in macsec_get_iflink run #16: crashed: KASAN: use-after-free Read in macsec_get_iflink run #17: OK run #18: OK run #19: OK representative crash: KASAN: use-after-free Read in macsec_get_iflink, types: [KASAN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG LOCKDEP], they are not needed testing commit e5e5644ea27f86a29c84df744a01ea7de65ef800 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a0f484ad50be1452382363b4786d8a5ba4ef424df02b41cf6e1d78928c212f56 run #0: crashed: KASAN: use-after-free Read in macsec_get_iflink run #1: crashed: KASAN: use-after-free Read in macsec_get_iflink run #2: crashed: KASAN: use-after-free Read in macsec_get_iflink run #3: crashed: KASAN: use-after-free Read in macsec_get_iflink run #4: crashed: KASAN: use-after-free Read in macsec_get_iflink run #5: crashed: KASAN: use-after-free Read in macsec_get_iflink run #6: crashed: KASAN: use-after-free Read in macsec_get_iflink run #7: crashed: KASAN: use-after-free Read in macsec_get_iflink run #8: crashed: KASAN: use-after-free Read in macsec_get_iflink run #9: crashed: KASAN: use-after-free Read in macsec_get_iflink run #10: crashed: KASAN: use-after-free Read in macsec_get_iflink run #11: crashed: KASAN: use-after-free Read in macsec_get_iflink run #12: crashed: KASAN: use-after-free Read in macsec_get_iflink run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: crashed: KASAN: use-after-free Read in macsec_get_iflink run #19: OK representative crash: KASAN: use-after-free Read in macsec_get_iflink, types: [KASAN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [BUG LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit e5e5644ea27f86a29c84df744a01ea7de65ef800 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1cb051a11df45d09b658c4ea6eb4508ef3f1fd990d90e8d4a64cf2fbef469f36 run #0: crashed: KASAN: use-after-free Read in macsec_get_iflink run #1: crashed: KASAN: use-after-free Read in macsec_get_iflink run #2: crashed: KASAN: use-after-free Read in macsec_get_iflink run #3: crashed: KASAN: use-after-free Read in macsec_get_iflink run #4: crashed: KASAN: use-after-free Read in macsec_get_iflink run #5: crashed: KASAN: use-after-free Read in macsec_get_iflink run #6: crashed: KASAN: use-after-free Read in macsec_get_iflink run #7: crashed: KASAN: use-after-free Read in macsec_get_iflink run #8: crashed: KASAN: use-after-free Read in macsec_get_iflink run #9: crashed: KASAN: use-after-free Read in macsec_get_iflink run #10: crashed: KASAN: use-after-free Read in macsec_get_iflink run #11: crashed: KASAN: use-after-free Read in macsec_get_iflink run #12: crashed: KASAN: use-after-free Read in macsec_get_iflink run #13: crashed: KASAN: use-after-free Read in macsec_get_iflink run #14: crashed: KASAN: use-after-free Read in macsec_get_iflink run #15: crashed: KASAN: use-after-free Read in macsec_get_iflink run #16: crashed: KASAN: use-after-free Read in macsec_get_iflink run #17: crashed: KASAN: use-after-free Read in macsec_get_iflink run #18: OK run #19: OK representative crash: KASAN: use-after-free Read in macsec_get_iflink, types: [KASAN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit e5e5644ea27f86a29c84df744a01ea7de65ef800 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 failed building e5e5644ea27f86a29c84df744a01ea7de65ef800: net/socket.c:1128: undefined reference to `wext_handle_ioctl' net/socket.c:3397: undefined reference to `compat_wext_handle_ioctl' net/core/net-procfs.c:346: undefined reference to `wext_proc_exit' net/core/net-procfs.c:330: undefined reference to `wext_proc_init' minimized to 49 configs; suspects: [HID_ZEROPLUS USB_NET_CDC_SUBSET USB_NET_CDC_SUBSET_ENABLE USB_NET_DM9601 USB_NET_GL620A USB_NET_MCS7830 USB_NET_NET1080 USB_NET_PLUSB USB_NET_RNDIS_HOST USB_NET_SMSC75XX USB_NET_SMSC95XX USB_NET_SR9700 USB_NET_SR9800 USB_NET_ZAURUS USB_OHCI_HCD USB_OHCI_HCD_PCI USB_OHCI_HCD_PLATFORM USB_OTG USB_OTG_FSM USB_PRINTER USB_SERIAL USB_SERIAL_FTDI_SIO USB_SERIAL_GENERIC USB_SERIAL_PL2303 USB_STORAGE_ALAUDA USB_STORAGE_CYPRESS_ATACB USB_STORAGE_DATAFAB USB_STORAGE_FREECOM USB_STORAGE_ISD200 USB_STORAGE_JUMPSHOT USB_STORAGE_KARMA USB_STORAGE_ONETOUCH USB_STORAGE_SDDR09 USB_STORAGE_SDDR55 USB_STORAGE_USBAT USB_TRANCEVIBRATOR USB_U_AUDIO USB_U_ETHER USB_U_SERIAL USB_WDM USB_XHCI_PCI_RENESAS WLAN WLAN_VENDOR_ATH WLAN_VENDOR_ATMEL WLAN_VENDOR_BROADCOM WLAN_VENDOR_INTERSIL WLAN_VENDOR_MARVELL WLAN_VENDOR_MEDIATEK WLAN_VENDOR_MICROCHIP WLAN_VENDOR_RALINK WLAN_VENDOR_REALTEK WLAN_VENDOR_RSI WLAN_VENDOR_ZYDAS X86_X32 ZEROPLUS_FF] disabling configs for [BUG LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing current HEAD 59e9a72288571b476bbe39902c89aed0423905bf testing commit 59e9a72288571b476bbe39902c89aed0423905bf gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5beebb5a92b299ea2e9e64bb5b091d905c67cb31d024751969a29d671cbc4f0b run #0: crashed: KASAN: use-after-free Read in macsec_get_iflink run #1: crashed: KASAN: use-after-free Read in macsec_get_iflink run #2: crashed: KASAN: use-after-free Read in macsec_get_iflink run #3: crashed: KASAN: use-after-free Read in macsec_get_iflink run #4: crashed: KASAN: use-after-free Read in macsec_get_iflink run #5: crashed: KASAN: use-after-free Read in macsec_get_iflink run #6: crashed: KASAN: use-after-free Read in macsec_get_iflink run #7: crashed: KASAN: use-after-free Read in macsec_get_iflink run #8: crashed: KASAN: use-after-free Read in macsec_get_iflink run #9: crashed: KASAN: use-after-free Read in macsec_get_iflink run #10: crashed: KASAN: use-after-free Read in macsec_get_iflink run #11: crashed: KASAN: use-after-free Read in macsec_get_iflink run #12: crashed: KASAN: use-after-free Read in macsec_get_iflink run #13: crashed: KASAN: use-after-free Read in macsec_get_iflink run #14: crashed: KASAN: use-after-free Read in macsec_get_iflink run #15: crashed: KASAN: use-after-free Read in macsec_get_iflink run #16: crashed: KASAN: use-after-free Read in macsec_get_iflink run #17: crashed: KASAN: use-after-free Read in macsec_get_iflink run #18: OK run #19: OK representative crash: KASAN: use-after-free Read in macsec_get_iflink, types: [KASAN] crash still not fixed/happens on the oldest tested release reproducer is flaky (0.90 repro chance estimate) revisions tested: 7, total time: 1h57m16.801453372s (build: 20m2.736030179s, test: 1h35m45.213562831s) crash still not fixed or there were kernel test errors commit msg: Merge android13-5.10 into android13-5.10-lts crash: KASAN: use-after-free Read in macsec_get_iflink IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready ================================================================== BUG: KASAN: use-after-free in macsec_get_iflink+0x62/0x70 drivers/net/macsec.c:3654 Read of size 4 at addr ffff888112912100 by task kworker/u4:3/341 CPU: 0 PID: 341 Comm: kworker/u4:3 Not tainted 5.10.238-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: events_unbound linkwatch_event Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack_lvl+0x81/0xac lib/dump_stack.c:118 print_address_description.constprop.0+0x24/0x160 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:435 [inline] kasan_report.cold+0x82/0xdb mm/kasan/report.c:452 __asan_report_load4_noabort+0x14/0x20 mm/kasan/report_generic.c:308 macsec_get_iflink+0x62/0x70 drivers/net/macsec.c:3654 dev_get_iflink+0x64/0xc0 net/core/dev.c:824 rfc2863_policy+0x1bb/0x230 net/core/link_watch.c:41 linkwatch_do_dev+0x28/0xf0 net/core/link_watch.c:160 __linkwatch_run_queue+0x1d5/0x5d0 net/core/link_watch.c:213 linkwatch_event+0x3b/0x50 net/core/link_watch.c:252 process_one_work+0x5f5/0xe40 kernel/workqueue.c:2301 process_scheduled_works kernel/workqueue.c:2363 [inline] worker_thread+0x560/0xcd0 kernel/workqueue.c:2449 kthread+0x345/0x420 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 Allocated by task 486: kasan_save_stack+0x26/0x50 mm/kasan/common.c:38 kasan_set_track mm/kasan/common.c:45 [inline] set_alloc_info mm/kasan/common.c:430 [inline] ____kasan_kmalloc mm/kasan/common.c:509 [inline] ____kasan_kmalloc mm/kasan/common.c:468 [inline] __kasan_kmalloc+0xae/0xe0 mm/kasan/common.c:518 kasan_kmalloc include/linux/kasan.h:254 [inline] __kmalloc+0x1cd/0x360 mm/slub.c:4033 __kmalloc_node include/linux/slab.h:418 [inline] kmalloc_node include/linux/slab.h:575 [inline] kvmalloc_node+0x25/0x90 mm/util.c:612 kvmalloc include/linux/mm.h:822 [inline] kvzalloc include/linux/mm.h:830 [inline] alloc_netdev_mqs+0x5d/0xdc0 net/core/dev.c:10527 rtnl_create_link+0x1e2/0xb80 net/core/rtnetlink.c:3195 veth_newlink+0x1a6/0x950 drivers/net/veth.c:1344 __rtnl_newlink+0xdb8/0x14e0 net/core/rtnetlink.c:3482 rtnl_newlink+0x5f/0x90 net/core/rtnetlink.c:3530 rtnetlink_rcv_msg+0x334/0x970 net/core/rtnetlink.c:5610 netlink_rcv_skb+0x133/0x3c0 net/netlink/af_netlink.c:2485 rtnetlink_rcv+0x10/0x20 net/core/rtnetlink.c:5628 netlink_unicast_kernel net/netlink/af_netlink.c:1307 [inline] netlink_unicast+0x4f8/0x810 net/netlink/af_netlink.c:1333 netlink_sendmsg+0x815/0xd10 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:652 [inline] __sock_sendmsg+0xb5/0xf0 net/socket.c:664 __sys_sendto+0x1e3/0x2f0 net/socket.c:2006 __do_sys_sendto net/socket.c:2018 [inline] __se_sys_sendto net/socket.c:2014 [inline] __x64_sys_sendto+0xdc/0x1a0 net/socket.c:2014 do_syscall_64+0x32/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb Freed by task 108: kasan_save_stack+0x26/0x50 mm/kasan/common.c:38 kasan_set_track+0x25/0x30 mm/kasan/common.c:45 kasan_set_free_info+0x24/0x40 mm/kasan/generic.c:370 ____kasan_slab_free mm/kasan/common.c:362 [inline] ____kasan_slab_free mm/kasan/common.c:324 [inline] __kasan_slab_free+0x111/0x150 mm/kasan/common.c:370 kasan_slab_free include/linux/kasan.h:220 [inline] slab_free_hook mm/slub.c:1595 [inline] slab_free_freelist_hook+0x9b/0x1a0 mm/slub.c:1621 slab_free mm/slub.c:3203 [inline] kfree+0xc2/0x4e0 mm/slub.c:4191 kvfree+0x25/0x30 mm/util.c:647 netdev_freemem+0x47/0x60 net/core/dev.c:10481 netdev_release+0x68/0x80 net/core/net-sysfs.c:1886 device_release+0x9d/0x1a0 drivers/base/core.c:2137 kobject_cleanup+0xb5/0x180 lib/kobject.c:713 kobject_release lib/kobject.c:744 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x45/0x60 lib/kobject.c:761 netdev_run_todo+0x6a6/0xb10 net/core/dev.c:10352 rtnl_unlock+0x9/0x10 net/core/rtnetlink.c:112 default_device_exit_batch+0x3d8/0x510 net/core/dev.c:11288 ops_exit_list+0xd9/0x130 net/core/net_namespace.c:190 cleanup_net+0x403/0x960 net/core/net_namespace.c:609 process_one_work+0x5f5/0xe40 kernel/workqueue.c:2301 worker_thread+0x402/0xcd0 kernel/workqueue.c:2447 kthread+0x345/0x420 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 The buggy address belongs to the object at ffff888112912000 which belongs to the cache kmalloc-4k of size 4096 The buggy address is located 256 bytes inside of 4096-byte region [ffff888112912000, ffff888112913000) The buggy address belongs to the page: page:ffffea00044a4400 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x112910 head:ffffea00044a4400 order:3 compound_mapcount:0 compound_pincount:0 flags: 0x4000000000010200(slab|head) raw: 4000000000010200 dead000000000100 dead000000000122 ffff888100042c00 raw: 0000000000000000 0000000000040004 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Unmovable, gfp_mask 0x1d60c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_RETRY_MAYFAIL|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 486, ts 63227138734, free_ts 63223676961 set_page_owner include/linux/page_owner.h:35 [inline] post_alloc_hook mm/page_alloc.c:2456 [inline] prep_new_page mm/page_alloc.c:2462 [inline] get_page_from_freelist+0x1fee/0x2ad0 mm/page_alloc.c:4254 __alloc_pages_nodemask+0x2ae/0x2490 mm/page_alloc.c:5357 __alloc_pages include/linux/gfp.h:544 [inline] __alloc_pages_node include/linux/gfp.h:557 [inline] alloc_pages_node include/linux/gfp.h:571 [inline] alloc_pages include/linux/gfp.h:590 [inline] alloc_slab_page mm/slub.c:1665 [inline] allocate_slab+0x30f/0x460 mm/slub.c:1808 new_slab mm/slub.c:1869 [inline] new_slab_objects mm/slub.c:2627 [inline] ___slab_alloc.constprop.0+0x32b/0x730 mm/slub.c:2791 __slab_alloc mm/slub.c:2831 [inline] slab_alloc_node mm/slub.c:2913 [inline] slab_alloc mm/slub.c:2955 [inline] __kmalloc+0x32d/0x360 mm/slub.c:4029 __kmalloc_node include/linux/slab.h:418 [inline] kmalloc_node include/linux/slab.h:575 [inline] kvmalloc_node+0x25/0x90 mm/util.c:612 kvmalloc include/linux/mm.h:822 [inline] kvzalloc include/linux/mm.h:830 [inline] alloc_netdev_mqs+0x5d/0xdc0 net/core/dev.c:10527 rtnl_create_link+0x1e2/0xb80 net/core/rtnetlink.c:3195 veth_newlink+0x1a6/0x950 drivers/net/veth.c:1344 __rtnl_newlink+0xdb8/0x14e0 net/core/rtnetlink.c:3482 rtnl_newlink+0x5f/0x90 net/core/rtnetlink.c:3530 rtnetlink_rcv_msg+0x334/0x970 net/core/rtnetlink.c:5610 netlink_rcv_skb+0x133/0x3c0 net/netlink/af_netlink.c:2485 rtnetlink_rcv+0x10/0x20 net/core/rtnetlink.c:5628 netlink_unicast_kernel net/netlink/af_netlink.c:1307 [inline] netlink_unicast+0x4f8/0x810 net/netlink/af_netlink.c:1333 netlink_sendmsg+0x815/0xd10 net/netlink/af_netlink.c:1901 page last free stack trace: reset_page_owner include/linux/page_owner.h:28 [inline] free_pages_prepare mm/page_alloc.c:1349 [inline] __free_pages_ok+0x44b/0x840 mm/page_alloc.c:1629 free_the_page mm/page_alloc.c:5418 [inline] __free_pages+0xda/0xf0 mm/page_alloc.c:5427 __free_slab+0xde/0x1d0 mm/slub.c:1894 free_slab mm/slub.c:1909 [inline] discard_slab+0x2b/0x40 mm/slub.c:1915 unfreeze_partials+0x1e1/0x240 mm/slub.c:2410 put_cpu_partial+0xce/0x120 mm/slub.c:2446 __slab_free+0x23f/0x560 mm/slub.c:3095 do_slab_free mm/slub.c:3191 [inline] ___cache_free+0x255/0x2b0 mm/slub.c:3210 qlink_free mm/kasan/quarantine.c:157 [inline] qlist_free_all+0x71/0x150 mm/kasan/quarantine.c:176 kasan_quarantine_reduce+0x15f/0x1c0 mm/kasan/quarantine.c:283 __kasan_slab_alloc+0xaa/0xc0 mm/kasan/common.c:440 kasan_slab_alloc include/linux/kasan.h:244 [inline] slab_post_alloc_hook mm/slab.h:583 [inline] slab_alloc_node mm/slub.c:2947 [inline] slab_alloc mm/slub.c:2955 [inline] kmem_cache_alloc_trace+0x165/0x500 mm/slub.c:2972 kmalloc include/linux/slab.h:552 [inline] kzalloc include/linux/slab.h:664 [inline] inetdev_init+0x4e/0x530 net/ipv4/devinet.c:259 inetdev_event+0x984/0x1220 net/ipv4/devinet.c:1545 notifier_call_chain kernel/notifier.c:83 [inline] raw_notifier_call_chain+0x8e/0xd0 kernel/notifier.c:410 call_netdevice_notifiers_info net/core/dev.c:2054 [inline] call_netdevice_notifiers_info net/core/dev.c:2039 [inline] call_netdevice_notifiers_extack net/core/dev.c:2066 [inline] call_netdevice_notifiers net/core/dev.c:2080 [inline] register_netdevice+0xc10/0x14a0 net/core/dev.c:10087 Memory state around the buggy address: ffff888112912000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888112912080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff888112912100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888112912180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888112912200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================