ci2 starts bisection 2024-07-02 14:45:48.652876238 +0000 UTC m=+18243.473047270 bisecting fixing commit since ea2937bdd12f6ebc51e6698c5696a1b16507999b building syzkaller on 551587c192ecb4df26fcdab775ed145ee69c07d4 ensuring issue is reproducible on original commit ea2937bdd12f6ebc51e6698c5696a1b16507999b testing commit ea2937bdd12f6ebc51e6698c5696a1b16507999b gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bf0dc5451c5c859eaa8aba08e7830c0a1c45537d67203dffda5c1382e456f99f run #0: crashed: KASAN: use-after-free Read in worker_thread run #1: crashed: KASAN: use-after-free Read in worker_thread run #2: crashed: KASAN: use-after-free Read in worker_thread run #3: crashed: KASAN: use-after-free Read in process_one_work run #4: crashed: KASAN: use-after-free Read in worker_thread run #5: crashed: KASAN: use-after-free Read in worker_thread run #6: crashed: KASAN: use-after-free Read in worker_thread run #7: crashed: KASAN: use-after-free Read in worker_thread run #8: crashed: KASAN: use-after-free Read in worker_thread run #9: crashed: KASAN: use-after-free Read in worker_thread run #10: crashed: KASAN: use-after-free Read in worker_thread run #11: crashed: KASAN: use-after-free Read in process_one_work run #12: crashed: KASAN: use-after-free Read in worker_thread run #13: crashed: KASAN: use-after-free Read in process_one_work run #14: crashed: KASAN: use-after-free Read in worker_thread run #15: crashed: KASAN: use-after-free Read in worker_thread run #16: crashed: KASAN: use-after-free Read in process_one_work run #17: crashed: KASAN: use-after-free Read in worker_thread run #18: crashed: KASAN: use-after-free Read in process_one_work run #19: crashed: KASAN: use-after-free Read in process_one_work representative crash: KASAN: use-after-free Read in worker_thread, types: [KASAN] check whether we can drop unnecessary instrumentation disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed testing commit ea2937bdd12f6ebc51e6698c5696a1b16507999b gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 27ef8ff80fc4fec8087b62d5da9c792f48babb511c1ef02c856878c92d69a579 run #0: crashed: KASAN: use-after-free Read in worker_thread run #1: crashed: KASAN: use-after-free Read in worker_thread run #2: crashed: KASAN: use-after-free Read in worker_thread run #3: crashed: KASAN: use-after-free Read in process_one_work run #4: crashed: KASAN: use-after-free Read in process_one_work run #5: crashed: KASAN: use-after-free Read in process_one_work run #6: crashed: KASAN: use-after-free Read in worker_thread run #7: crashed: KASAN: use-after-free Read in process_one_work run #8: crashed: KASAN: use-after-free Read in worker_thread run #9: crashed: KASAN: use-after-free Read in worker_thread representative crash: KASAN: use-after-free Read in worker_thread, 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=4920 full=6161 leaves diff=241 split chunks (needed=false): <241> split chunk #0 of len 241 into 5 parts testing without sub-chunk 1/5 disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed testing commit ea2937bdd12f6ebc51e6698c5696a1b16507999b gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4b945e8437849aa325bc990ae549517d671bd7bf39f523f56b330e9ea05426a2 run #0: crashed: KASAN: use-after-free Read in worker_thread run #1: crashed: KASAN: use-after-free Read in worker_thread run #2: crashed: KASAN: use-after-free Read in worker_thread run #3: crashed: KASAN: use-after-free Read in worker_thread run #4: crashed: KASAN: use-after-free Read in worker_thread run #5: crashed: KASAN: use-after-free Read in process_one_work run #6: crashed: KASAN: use-after-free Read in process_one_work run #7: crashed: KASAN: use-after-free Read in worker_thread run #8: crashed: KASAN: use-after-free Read in process_one_work run #9: crashed: KASAN: use-after-free Read in worker_thread representative crash: KASAN: use-after-free Read in worker_thread, types: [KASAN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed testing commit ea2937bdd12f6ebc51e6698c5696a1b16507999b gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a6b887d354266c9ed6b66a841851375b4f7cbfdb8a268637adeb9d9647078fcb run #0: crashed: KASAN: use-after-free Read in worker_thread run #1: crashed: KASAN: use-after-free Read in process_one_work run #2: crashed: KASAN: use-after-free Read in worker_thread run #3: crashed: KASAN: use-after-free Read in process_one_work run #4: crashed: KASAN: use-after-free Read in process_one_work run #5: crashed: KASAN: use-after-free Read in process_one_work run #6: crashed: KASAN: use-after-free Read in worker_thread run #7: crashed: KASAN: use-after-free Read in process_one_work run #8: crashed: KASAN: use-after-free Read in process_one_work run #9: crashed: KASAN: use-after-free Read in worker_thread representative crash: KASAN: use-after-free Read in worker_thread, types: [KASAN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit ea2937bdd12f6ebc51e6698c5696a1b16507999b gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: afedaf45737d6891df8de62b792b8878c29436774f5e2a3c821d41f44ab2cfc7 run #0: crashed: KASAN: use-after-free Read in worker_thread run #1: crashed: KASAN: use-after-free Read in process_one_work run #2: crashed: KASAN: use-after-free Read in worker_thread run #3: crashed: KASAN: use-after-free Read in worker_thread run #4: crashed: KASAN: use-after-free Read in process_one_work run #5: crashed: KASAN: use-after-free Read in worker_thread run #6: crashed: KASAN: use-after-free Read in worker_thread run #7: crashed: KASAN: use-after-free Read in process_one_work run #8: crashed: KASAN: use-after-free Read in process_one_work run #9: crashed: KASAN: use-after-free Read in process_one_work representative crash: KASAN: use-after-free Read in worker_thread, types: [KASAN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit ea2937bdd12f6ebc51e6698c5696a1b16507999b gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9f1c4b73b3d1a513577e55d86cd75d649b54a98b04de95a56eea14e375498885 run #0: crashed: KASAN: use-after-free Read in process_one_work run #1: crashed: KASAN: use-after-free Read in worker_thread run #2: crashed: KASAN: use-after-free Read in worker_thread run #3: crashed: KASAN: use-after-free Read in worker_thread run #4: crashed: KASAN: use-after-free Read in worker_thread run #5: crashed: KASAN: use-after-free Read in worker_thread run #6: crashed: KASAN: use-after-free Read in worker_thread run #7: crashed: KASAN: use-after-free Read in worker_thread run #8: crashed: KASAN: use-after-free Read in worker_thread run #9: crashed: KASAN: use-after-free Read in worker_thread representative crash: KASAN: use-after-free Read in process_one_work, types: [KASAN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [BUG LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit ea2937bdd12f6ebc51e6698c5696a1b16507999b gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 failed building ea2937bdd12f6ebc51e6698c5696a1b16507999b: net/socket.c:1189: undefined reference to `wext_handle_ioctl' net/socket.c:3383: undefined reference to `compat_wext_handle_ioctl' net/core/net-procfs.c:343: undefined reference to `wext_proc_exit' net/core/net-procfs.c:327: undefined reference to `wext_proc_init' minimized to 45 configs; suspects: [HID_ZEROPLUS 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 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 [UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing current HEAD 9044d25b8ff5cb55bf57542a8457cd1e4e37646d testing commit 9044d25b8ff5cb55bf57542a8457cd1e4e37646d gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7c7c4c34586361d311aff37174806ed1d5b1e72edf92b20a786d842e3cc2f2ed run #0: crashed: KASAN: use-after-free Read in worker_thread run #1: crashed: KASAN: use-after-free Read in process_one_work run #2: crashed: KASAN: use-after-free Read in worker_thread run #3: crashed: KASAN: use-after-free Read in worker_thread run #4: crashed: KASAN: use-after-free Read in worker_thread run #5: crashed: KASAN: use-after-free Read in worker_thread run #6: crashed: KASAN: use-after-free Read in worker_thread run #7: crashed: KASAN: use-after-free Read in worker_thread run #8: crashed: KASAN: use-after-free Read in worker_thread run #9: crashed: KASAN: use-after-free Read in worker_thread representative crash: KASAN: use-after-free Read in worker_thread, types: [KASAN] crash still not fixed/happens on the oldest tested release revisions tested: 7, total time: 1h36m57.151701188s (build: 47m52.00246183s, test: 47m12.677388097s) crash still not fixed or there were kernel test errors commit msg: Revert "net: dev: Convert sa_data to flexible array in struct sockaddr" crash: KASAN: use-after-free Read in worker_thread ================================================================== BUG: KASAN: use-after-free in worker_thread+0xb2f/0xdb0 kernel/workqueue.c:2470 Read of size 8 at addr ffff888110598c60 by task kworker/1:6/451 CPU: 1 PID: 451 Comm: kworker/1:6 Not tainted 5.15.150-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 Workqueue: 0x0 (wg-crypt-wg1) Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x38/0x49 lib/dump_stack.c:106 print_address_description.constprop.0+0x24/0x160 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:427 [inline] kasan_report.cold+0x82/0xdb mm/kasan/report.c:444 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report_generic.c:309 worker_thread+0xb2f/0xdb0 kernel/workqueue.c:2470 kthread+0x324/0x3e0 kernel/kthread.c:337 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 Allocated by task 25: 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:433 [inline] ____kasan_kmalloc mm/kasan/common.c:512 [inline] ____kasan_kmalloc mm/kasan/common.c:471 [inline] __kasan_kmalloc+0xae/0xe0 mm/kasan/common.c:521 kasan_kmalloc include/linux/kasan.h:227 [inline] __kmalloc+0x2d5/0x4e0 mm/slub.c:4427 __kmalloc_node include/linux/slab.h:469 [inline] kmalloc_node include/linux/slab.h:626 [inline] kvmalloc_node+0xee/0x240 mm/util.c:628 kvmalloc include/linux/mm.h:851 [inline] kvzalloc include/linux/mm.h:859 [inline] alloc_netdev_mqs+0x5e/0xd70 net/core/dev.c:10855 alloc_etherdev_mqs+0x1f/0x30 net/ethernet/eth.c:393 usbnet_probe+0x199/0x24d0 drivers/net/usb/usbnet.c:1694 usb_probe_interface+0x257/0x640 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:516 [inline] really_probe.part.0+0x5c6/0x7b0 drivers/base/dd.c:595 really_probe drivers/base/dd.c:557 [inline] __driver_probe_device+0x1b4/0x320 drivers/base/dd.c:755 driver_probe_device+0x49/0x120 drivers/base/dd.c:785 __device_attach_driver+0x156/0x220 drivers/base/dd.c:907 bus_for_each_drv+0x127/0x1c0 drivers/base/bus.c:427 __device_attach+0x28e/0x490 drivers/base/dd.c:979 device_initial_probe+0xe/0x10 drivers/base/dd.c:1028 bus_probe_device+0x19e/0x240 drivers/base/bus.c:487 device_add+0x9bc/0x1c90 drivers/base/core.c:3404 usb_set_configuration+0x9c9/0x14f0 drivers/usb/core/message.c:2165 usb_generic_driver_probe+0x7d/0xb0 drivers/usb/core/generic.c:238 usb_probe_device+0x9c/0x220 drivers/usb/core/driver.c:293 call_driver_probe drivers/base/dd.c:516 [inline] really_probe.part.0+0x5c6/0x7b0 drivers/base/dd.c:595 really_probe drivers/base/dd.c:557 [inline] __driver_probe_device+0x1b4/0x320 drivers/base/dd.c:755 driver_probe_device+0x49/0x120 drivers/base/dd.c:785 __device_attach_driver+0x156/0x220 drivers/base/dd.c:907 bus_for_each_drv+0x127/0x1c0 drivers/base/bus.c:427 __device_attach+0x28e/0x490 drivers/base/dd.c:979 device_initial_probe+0xe/0x10 drivers/base/dd.c:1028 bus_probe_device+0x19e/0x240 drivers/base/bus.c:487 device_add+0x9bc/0x1c90 drivers/base/core.c:3404 usb_new_device.cold+0x5f9/0xe6b drivers/usb/core/hub.c:2590 hub_port_connect drivers/usb/core/hub.c:5503 [inline] hub_port_connect_change drivers/usb/core/hub.c:5643 [inline] port_event drivers/usb/core/hub.c:5793 [inline] hub_event+0x20e0/0x36b0 drivers/usb/core/hub.c:5875 process_one_work+0x62c/0xec0 kernel/workqueue.c:2325 process_scheduled_works kernel/workqueue.c:2388 [inline] worker_thread+0x5f7/0xdb0 kernel/workqueue.c:2474 kthread+0x324/0x3e0 kernel/kthread.c:337 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 Freed by task 25: 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:365 [inline] ____kasan_slab_free mm/kasan/common.c:327 [inline] __kasan_slab_free+0x111/0x150 mm/kasan/common.c:373 kasan_slab_free include/linux/kasan.h:193 [inline] slab_free_hook mm/slub.c:1723 [inline] slab_free_freelist_hook+0x94/0x1a0 mm/slub.c:1749 slab_free mm/slub.c:3519 [inline] kfree+0xc2/0x260 mm/slub.c:4579 kvfree+0x25/0x30 mm/util.c:664 netdev_freemem+0x47/0x60 net/core/dev.c:10809 netdev_release+0x68/0x80 net/core/net-sysfs.c:1903 device_release+0x9d/0x1a0 drivers/base/core.c:2240 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 put_device+0xe/0x20 drivers/base/core.c:3512 free_netdev+0x30b/0x490 net/core/dev.c:10995 usbnet_disconnect+0x244/0x2d0 drivers/net/usb/usbnet.c:1633 ax88179_disconnect+0x87/0xb0 drivers/net/usb/ax88179_178a.c:534 usb_unbind_interface+0x185/0x7b0 drivers/usb/core/driver.c:458 __device_release_driver+0x5ae/0x700 drivers/base/dd.c:1229 device_release_driver_internal drivers/base/dd.c:1262 [inline] device_release_driver+0x24/0x40 drivers/base/dd.c:1285 bus_remove_device+0x2a9/0x470 drivers/base/bus.c:529 device_del+0x507/0xbd0 drivers/base/core.c:3592 usb_disable_device+0x26d/0x500 drivers/usb/core/message.c:1414 usb_disconnect.cold+0x1e7/0x651 drivers/usb/core/hub.c:2240 hub_port_connect drivers/usb/core/hub.c:5342 [inline] hub_port_connect_change drivers/usb/core/hub.c:5643 [inline] port_event drivers/usb/core/hub.c:5793 [inline] hub_event+0x13a6/0x36b0 drivers/usb/core/hub.c:5875 process_one_work+0x62c/0xec0 kernel/workqueue.c:2325 process_scheduled_works kernel/workqueue.c:2388 [inline] worker_thread+0x5f7/0xdb0 kernel/workqueue.c:2474 kthread+0x324/0x3e0 kernel/kthread.c:337 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 Last potentially related work creation: kasan_save_stack+0x26/0x50 mm/kasan/common.c:38 __kasan_record_aux_stack+0xd8/0xf0 mm/kasan/generic.c:348 kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:358 insert_work+0x48/0x320 kernel/workqueue.c:1373 __queue_work+0x42b/0xba0 kernel/workqueue.c:1539 queue_work_on+0x4c/0x60 kernel/workqueue.c:1566 queue_work include/linux/workqueue.h:510 [inline] schedule_work include/linux/workqueue.h:571 [inline] usbnet_defer_kevent drivers/net/usb/usbnet.c:471 [inline] usbnet_link_change+0xb1/0x130 drivers/net/usb/usbnet.c:1996 ax88179_reset+0x765/0x9e0 drivers/net/usb/ax88179_178a.c:1694 ax88179_bind+0x36a/0x430 drivers/net/usb/ax88179_178a.c:1342 usbnet_probe+0xbbc/0x24d0 drivers/net/usb/usbnet.c:1746 usb_probe_interface+0x257/0x640 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:516 [inline] really_probe.part.0+0x5c6/0x7b0 drivers/base/dd.c:595 really_probe drivers/base/dd.c:557 [inline] __driver_probe_device+0x1b4/0x320 drivers/base/dd.c:755 driver_probe_device+0x49/0x120 drivers/base/dd.c:785 __device_attach_driver+0x156/0x220 drivers/base/dd.c:907 bus_for_each_drv+0x127/0x1c0 drivers/base/bus.c:427 __device_attach+0x28e/0x490 drivers/base/dd.c:979 device_initial_probe+0xe/0x10 drivers/base/dd.c:1028 bus_probe_device+0x19e/0x240 drivers/base/bus.c:487 device_add+0x9bc/0x1c90 drivers/base/core.c:3404 usb_set_configuration+0x9c9/0x14f0 drivers/usb/core/message.c:2165 usb_generic_driver_probe+0x7d/0xb0 drivers/usb/core/generic.c:238 usb_probe_device+0x9c/0x220 drivers/usb/core/driver.c:293 call_driver_probe drivers/base/dd.c:516 [inline] really_probe.part.0+0x5c6/0x7b0 drivers/base/dd.c:595 really_probe drivers/base/dd.c:557 [inline] __driver_probe_device+0x1b4/0x320 drivers/base/dd.c:755 driver_probe_device+0x49/0x120 drivers/base/dd.c:785 __device_attach_driver+0x156/0x220 drivers/base/dd.c:907 bus_for_each_drv+0x127/0x1c0 drivers/base/bus.c:427 __device_attach+0x28e/0x490 drivers/base/dd.c:979 device_initial_probe+0xe/0x10 drivers/base/dd.c:1028 bus_probe_device+0x19e/0x240 drivers/base/bus.c:487 device_add+0x9bc/0x1c90 drivers/base/core.c:3404 usb_new_device.cold+0x5f9/0xe6b drivers/usb/core/hub.c:2590 hub_port_connect drivers/usb/core/hub.c:5503 [inline] hub_port_connect_change drivers/usb/core/hub.c:5643 [inline] port_event drivers/usb/core/hub.c:5793 [inline] hub_event+0x20e0/0x36b0 drivers/usb/core/hub.c:5875 process_one_work+0x62c/0xec0 kernel/workqueue.c:2325 process_scheduled_works kernel/workqueue.c:2388 [inline] worker_thread+0x5f7/0xdb0 kernel/workqueue.c:2474 kthread+0x324/0x3e0 kernel/kthread.c:337 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 The buggy address belongs to the object at ffff888110598000 which belongs to the cache kmalloc-4k of size 4096 The buggy address is located 3168 bytes inside of 4096-byte region [ffff888110598000, ffff888110599000) The buggy address belongs to the page: page:ffffea0004416600 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x110598 head:ffffea0004416600 order:3 compound_mapcount:0 compound_pincount:0 flags: 0x4000000000010200(slab|head|zone=1) raw: 4000000000010200 0000000000000000 0000000100000001 ffff888100043380 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 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 97, ts 4407577973, free_ts 0 set_page_owner include/linux/page_owner.h:33 [inline] post_alloc_hook mm/page_alloc.c:2604 [inline] prep_new_page+0x1a2/0x310 mm/page_alloc.c:2610 get_page_from_freelist+0x1ce2/0x30a0 mm/page_alloc.c:4484 __alloc_pages+0x2d1/0x2620 mm/page_alloc.c:5776 __alloc_pages_node include/linux/gfp.h:591 [inline] alloc_pages_node include/linux/gfp.h:605 [inline] alloc_pages include/linux/gfp.h:618 [inline] alloc_slab_page mm/slub.c:1793 [inline] allocate_slab+0x39d/0x530 mm/slub.c:1932 new_slab mm/slub.c:1995 [inline] ___slab_alloc.constprop.0+0x3ca/0x890 mm/slub.c:3028 __slab_alloc.constprop.0+0x42/0x80 mm/slub.c:3115 slab_alloc_node mm/slub.c:3206 [inline] slab_alloc mm/slub.c:3248 [inline] kmem_cache_alloc_trace+0x456/0x490 mm/slub.c:3265 kmalloc include/linux/slab.h:603 [inline] kzalloc include/linux/slab.h:733 [inline] uevent_show+0x129/0x2f0 drivers/base/core.c:2398 dev_attr_show+0x3f/0x80 drivers/base/core.c:2105 sysfs_kf_seq_show+0x218/0x430 fs/sysfs/file.c:61 kernfs_seq_show+0x146/0x1b0 fs/kernfs/file.c:168 seq_read_iter+0x3fd/0x1020 fs/seq_file.c:230 kernfs_fop_read_iter+0x3e0/0x550 fs/kernfs/file.c:241 call_read_iter include/linux/fs.h:2198 [inline] new_sync_read+0x353/0x6d0 fs/read_write.c:404 vfs_read+0x347/0x4b0 fs/read_write.c:485 ksys_read+0x111/0x210 fs/read_write.c:623 page_owner free stack trace missing Memory state around the buggy address: ffff888110598b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888110598b80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff888110598c00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888110598c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888110598d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================