Title | Replies (including bot) | Last reply |
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[syzbot] KASAN: use-after-free Read in kernfs_get | 2 (3) | 2022/03/14 17:03 |
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[syzbot] KASAN: use-after-free Read in kernfs_get | 2 (3) | 2022/03/14 17:03 |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
android-5-15 | KASAN: use-after-free Read in kernfs_get (2) | 7 | 3d04h | 121d | 0/2 | premoderation: reported on 2024/07/15 05:15 | |||
upstream | KASAN: use-after-free Read in kernfs_get (2) kernfs | 2 | 635d | 721d | 0/28 | auto-obsoleted due to no activity on 2023/06/16 19:32 | |||
android-5-15 | KASAN: use-after-free Read in kernfs_get | 3 | 632d | 756d | 0/2 | auto-obsoleted due to no activity on 2023/05/20 22:47 | |||
android-6-1 | KASAN: use-after-free Read in kernfs_get | 2 | 92d | 137d | 0/2 | auto-obsoleted due to no activity on 2024/11/11 11:50 | |||
linux-5.15 | KASAN: use-after-free Read in kernfs_get | 1 | 90d | 90d | 0/3 | upstream: reported on 2024/08/15 10:42 | |||
upstream | KASAN: slab-use-after-free Read in kernfs_get kernfs | 1 | 271d | 271d | 0/28 | auto-obsoleted due to no activity on 2024/05/26 00:41 | |||
android-5-15 | KASAN: use-after-free Write in kernfs_get | 3 | 386d | 474d | 0/2 | auto-obsoleted due to no activity on 2024/01/21 14:31 |
usb 4-1: Direct firmware load for ueagle-atm/adi930.fw failed with error -2 usb 4-1: Falling back to sysfs fallback for: ueagle-atm/adi930.fw ================================================================== BUG: KASAN: use-after-free in instrument_atomic_read include/linux/instrumented.h:71 [inline] BUG: KASAN: use-after-free in atomic_read include/linux/atomic/atomic-instrumented.h:27 [inline] BUG: KASAN: use-after-free in kernfs_get.part.0+0x17/0x80 fs/kernfs/dir.c:504 Read of size 4 at addr ffff88807d5e1000 by task kworker/0:2/142 CPU: 0 PID: 142 Comm: kworker/0:2 Not tainted 5.19.0-rc6-syzkaller-00115-g4a57a8400075 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 Workqueue: events request_firmware_work_func Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 print_address_description.constprop.0.cold+0xeb/0x467 mm/kasan/report.c:313 print_report mm/kasan/report.c:429 [inline] kasan_report.cold+0xf4/0x1c6 mm/kasan/report.c:491 check_region_inline mm/kasan/generic.c:183 [inline] kasan_check_range+0x13d/0x180 mm/kasan/generic.c:189 instrument_atomic_read include/linux/instrumented.h:71 [inline] atomic_read include/linux/atomic/atomic-instrumented.h:27 [inline] kernfs_get.part.0+0x17/0x80 fs/kernfs/dir.c:504 kernfs_get+0x1b/0x30 fs/kernfs/dir.c:503 sysfs_get include/linux/sysfs.h:635 [inline] create_dir lib/kobject.c:79 [inline] kobject_add_internal+0x35f/0x900 lib/kobject.c:223 kobject_add_varg lib/kobject.c:358 [inline] kobject_add+0x150/0x1c0 lib/kobject.c:410 class_dir_create_and_add drivers/base/core.c:2965 [inline] get_device_parent+0x3d7/0x590 drivers/base/core.c:3020 device_add+0x2af/0x1ea0 drivers/base/core.c:3349 fw_load_sysfs_fallback drivers/base/firmware_loader/fallback.c:82 [inline] fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:158 [inline] firmware_fallback_sysfs+0x2da/0xbb0 drivers/base/firmware_loader/fallback.c:234 _request_firmware+0xbd2/0x1190 drivers/base/firmware_loader/main.c:856 request_firmware_work_func+0xdd/0x230 drivers/base/firmware_loader/main.c:1105 process_one_work+0x996/0x1610 kernel/workqueue.c:2289 worker_thread+0x665/0x1080 kernel/workqueue.c:2436 kthread+0x2e9/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 </TASK> Allocated by task 142: kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38 kasan_set_track mm/kasan/common.c:45 [inline] set_alloc_info mm/kasan/common.c:436 [inline] __kasan_slab_alloc+0x85/0xb0 mm/kasan/common.c:469 kasan_slab_alloc include/linux/kasan.h:224 [inline] slab_post_alloc_hook mm/slab.h:750 [inline] slab_alloc mm/slab.c:3302 [inline] __kmem_cache_alloc_lru mm/slab.c:3479 [inline] kmem_cache_alloc+0x265/0x560 mm/slab.c:3499 kmem_cache_zalloc include/linux/slab.h:723 [inline] __kernfs_new_node+0xd4/0x8b0 fs/kernfs/dir.c:593 kernfs_new_node fs/kernfs/dir.c:655 [inline] kernfs_create_dir_ns+0x9c/0x220 fs/kernfs/dir.c:1010 sysfs_create_dir_ns+0x127/0x290 fs/sysfs/dir.c:59 create_dir lib/kobject.c:63 [inline] kobject_add_internal+0x2ce/0x900 lib/kobject.c:223 kobject_add_varg lib/kobject.c:358 [inline] kobject_add+0x150/0x1c0 lib/kobject.c:410 class_dir_create_and_add drivers/base/core.c:2965 [inline] get_device_parent+0x3d7/0x590 drivers/base/core.c:3020 device_add+0x2af/0x1ea0 drivers/base/core.c:3349 fw_load_sysfs_fallback drivers/base/firmware_loader/fallback.c:82 [inline] fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:158 [inline] firmware_fallback_sysfs+0x2da/0xbb0 drivers/base/firmware_loader/fallback.c:234 _request_firmware+0xbd2/0x1190 drivers/base/firmware_loader/main.c:856 request_firmware_work_func+0xdd/0x230 drivers/base/firmware_loader/main.c:1105 process_one_work+0x996/0x1610 kernel/workqueue.c:2289 worker_thread+0x665/0x1080 kernel/workqueue.c:2436 kthread+0x2e9/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 Freed by task 3768: kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38 kasan_set_track+0x21/0x30 mm/kasan/common.c:45 kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370 ____kasan_slab_free mm/kasan/common.c:366 [inline] ____kasan_slab_free+0x13d/0x180 mm/kasan/common.c:328 kasan_slab_free include/linux/kasan.h:200 [inline] __cache_free mm/slab.c:3425 [inline] kmem_cache_free.part.0+0xa9/0x240 mm/slab.c:3735 kernfs_put.part.0+0x2c4/0x540 fs/kernfs/dir.c:547 kernfs_put+0x42/0x50 fs/kernfs/dir.c:521 __kernfs_remove+0x7a3/0xb20 fs/kernfs/dir.c:1404 kernfs_remove+0x77/0xa0 fs/kernfs/dir.c:1424 sysfs_remove_dir+0xc1/0x100 fs/sysfs/dir.c:101 __kobject_del+0xe2/0x200 lib/kobject.c:588 kobject_del lib/kobject.c:611 [inline] kobject_del+0x3c/0x60 lib/kobject.c:603 device_del+0x81c/0xc80 drivers/base/core.c:3626 usb_disconnect.cold+0x4ba/0x6ec drivers/usb/core/hub.c:2254 hub_port_connect drivers/usb/core/hub.c:5207 [inline] hub_port_connect_change drivers/usb/core/hub.c:5507 [inline] port_event drivers/usb/core/hub.c:5663 [inline] hub_event+0x1e83/0x4690 drivers/usb/core/hub.c:5745 process_one_work+0x996/0x1610 kernel/workqueue.c:2289 process_scheduled_works kernel/workqueue.c:2352 [inline] worker_thread+0x854/0x1080 kernel/workqueue.c:2438 kthread+0x2e9/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 The buggy address belongs to the object at ffff88807d5e1000 which belongs to the cache kernfs_node_cache of size 168 The buggy address is located 0 bytes inside of 168-byte region [ffff88807d5e1000, ffff88807d5e10a8) The buggy address belongs to the physical page: page:ffffea0001f57840 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7d5e1 flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000200 ffffea0001f2f708 ffffea00005b68c8 ffff888140165200 raw: 0000000000000000 ffff88807d5e1000 0000000100000011 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2420c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_COMP|__GFP_THISNODE), pid 3641, tgid 3641 (syz-executor.1), ts 216297914448, free_ts 216294411290 prep_new_page mm/page_alloc.c:2456 [inline] get_page_from_freelist+0x1290/0x3b70 mm/page_alloc.c:4198 __alloc_pages+0x1c7/0x510 mm/page_alloc.c:5426 __alloc_pages_node include/linux/gfp.h:587 [inline] kmem_getpages mm/slab.c:1363 [inline] cache_grow_begin+0x75/0x350 mm/slab.c:2569 cache_alloc_refill+0x27f/0x380 mm/slab.c:2942 ____cache_alloc mm/slab.c:3024 [inline] ____cache_alloc mm/slab.c:3007 [inline] __do_cache_alloc mm/slab.c:3253 [inline] slab_alloc mm/slab.c:3295 [inline] __kmem_cache_alloc_lru mm/slab.c:3479 [inline] kmem_cache_alloc+0x450/0x560 mm/slab.c:3499 kmem_cache_zalloc include/linux/slab.h:723 [inline] __kernfs_new_node+0xd4/0x8b0 fs/kernfs/dir.c:593 kernfs_new_node+0x93/0x120 fs/kernfs/dir.c:655 __kernfs_create_file+0x51/0x350 fs/kernfs/file.c:987 sysfs_add_file_mode_ns+0x20f/0x3f0 fs/sysfs/file.c:294 create_files fs/sysfs/group.c:64 [inline] internal_create_group+0x322/0xb10 fs/sysfs/group.c:148 internal_create_groups.part.0+0x90/0x140 fs/sysfs/group.c:188 internal_create_groups fs/sysfs/group.c:184 [inline] sysfs_create_groups+0x25/0x50 fs/sysfs/group.c:214 device_add_groups drivers/base/core.c:2483 [inline] device_add_attrs drivers/base/core.c:2642 [inline] device_add+0x14a6/0x1ea0 drivers/base/core.c:3379 netdev_register_kobject+0x181/0x400 net/core/net-sysfs.c:2015 register_netdevice+0xd9d/0x15e0 net/core/dev.c:10047 veth_newlink+0x4d6/0x9a0 drivers/net/veth.c:1799 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1371 [inline] free_pcp_prepare+0x549/0xd20 mm/page_alloc.c:1421 free_unref_page_prepare mm/page_alloc.c:3343 [inline] free_unref_page+0x19/0x6a0 mm/page_alloc.c:3438 slab_destroy mm/slab.c:1615 [inline] slabs_destroy+0x89/0xc0 mm/slab.c:1635 cache_flusharray mm/slab.c:3397 [inline] ___cache_free+0x34e/0x670 mm/slab.c:3460 qlink_free mm/kasan/quarantine.c:168 [inline] qlist_free_all+0x4f/0x1b0 mm/kasan/quarantine.c:187 kasan_quarantine_reduce+0x180/0x200 mm/kasan/quarantine.c:294 __kasan_slab_alloc+0x97/0xb0 mm/kasan/common.c:446 kasan_slab_alloc include/linux/kasan.h:224 [inline] slab_post_alloc_hook mm/slab.h:750 [inline] slab_alloc mm/slab.c:3302 [inline] kmem_cache_alloc_trace+0x258/0x4a0 mm/slab.c:3567 kmalloc include/linux/slab.h:600 [inline] kzalloc include/linux/slab.h:733 [inline] ref_tracker_alloc+0x152/0x560 lib/ref_tracker.c:85 __netdev_tracker_alloc include/linux/netdevice.h:3960 [inline] dev_hold_track include/linux/netdevice.h:3989 [inline] dev_hold_track include/linux/netdevice.h:3984 [inline] netdev_queue_add_kobject net/core/net-sysfs.c:1663 [inline] netdev_queue_update_kobjects+0x1a7/0x4e0 net/core/net-sysfs.c:1718 register_queue_kobjects net/core/net-sysfs.c:1779 [inline] netdev_register_kobject+0x330/0x400 net/core/net-sysfs.c:2019 register_netdevice+0xd9d/0x15e0 net/core/dev.c:10047 veth_newlink+0x33f/0x9a0 drivers/net/veth.c:1768 rtnl_newlink_create net/core/rtnetlink.c:3363 [inline] __rtnl_newlink+0x1087/0x17e0 net/core/rtnetlink.c:3580 rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3593 rtnetlink_rcv_msg+0x43a/0xc90 net/core/rtnetlink.c:6089 Memory state around the buggy address: ffff88807d5e0f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88807d5e0f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff88807d5e1000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88807d5e1080: fb fb fb fb fb fc fc fc fc fc fc fc fc fa fb fb ffff88807d5e1100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2022/07/14 09:18 | upstream | 4a57a8400075 | 5d921b08 | .config | console log | report | info | ci-upstream-kasan-gce-selinux-root | KASAN: use-after-free Read in kernfs_get | |||
2022/07/11 05:32 | upstream | d9919d43cbf6 | b5765a15 | .config | console log | report | info | ci-upstream-kasan-gce | KASAN: use-after-free Read in kernfs_get | |||
2022/03/14 14:46 | upstream | 09688c0166e7 | 9e8eaa75 | .config | console log | report | info | ci-qemu-upstream | KASAN: use-after-free Read in kernfs_get | |||
2022/03/14 13:49 | upstream | 09688c0166e7 | 9e8eaa75 | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | KASAN: use-after-free Read in kernfs_get | |||
2022/02/20 02:01 | upstream | 4f12b742eb2b | 3cd800e4 | .config | console log | report | info | ci-upstream-kasan-gce | KASAN: use-after-free Read in kernfs_get | |||
2022/01/29 22:07 | upstream | 169387e2aa29 | 495e00c5 | .config | console log | report | info | ci-upstream-kasan-gce-root | KASAN: use-after-free Read in kernfs_get | |||
2022/01/29 13:54 | upstream | 169387e2aa29 | 495e00c5 | .config | console log | report | info | ci-upstream-kasan-gce | KASAN: use-after-free Read in kernfs_get | |||
2022/01/25 15:45 | upstream | a08b41ab9e2e | 2cbffd88 | .config | console log | report | info | ci-upstream-kasan-gce | KASAN: use-after-free Read in kernfs_get |