Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|
KASAN: use-after-free Read in addr_handler (4) rdma | 1 | 1123d | 1119d | 28/28 | closed as dup on 2021/09/15 19:36 |
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Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|
KASAN: use-after-free Read in addr_handler (4) rdma | 1 | 1123d | 1119d | 28/28 | closed as dup on 2021/09/15 19:36 |
Title | Replies (including bot) | Last reply |
---|---|---|
KASAN: use-after-free Write in addr_resolve (2) | 0 (1) | 2021/02/25 08:03 |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KASAN: use-after-free Write in addr_resolve rdma | 1 | 1584d | 1581d | 15/28 | fixed on 2020/09/16 22:51 | |||
linux-4.14 | general protection fault in addr_resolve | C | 433 | 598d | 2002d | 0/1 | upstream: reported C repro on 2019/04/17 02:44 |
================================================================== BUG: KASAN: use-after-free in addr6_resolve drivers/infiniband/core/addr.c:439 [inline] BUG: KASAN: use-after-free in addr_resolve+0x1844/0x1b40 drivers/infiniband/core/addr.c:590 Write of size 4 at addr ffff88802f7e01a4 by task kworker/u4:3/114 CPU: 1 PID: 114 Comm: kworker/u4:3 Not tainted 5.11.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: ib_addr process_one_req Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x137/0x1be lib/dump_stack.c:120 print_address_description+0x5f/0x3a0 mm/kasan/report.c:230 __kasan_report mm/kasan/report.c:396 [inline] kasan_report+0x15e/0x200 mm/kasan/report.c:413 addr6_resolve drivers/infiniband/core/addr.c:439 [inline] addr_resolve+0x1844/0x1b40 drivers/infiniband/core/addr.c:590 process_one_req+0x105/0x550 drivers/infiniband/core/addr.c:630 process_one_work+0x789/0xfc0 kernel/workqueue.c:2275 worker_thread+0xac1/0x1300 kernel/workqueue.c:2421 kthread+0x39a/0x3c0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 Allocated by task 13814: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:401 [inline] ____kasan_kmalloc+0xbd/0xf0 mm/kasan/common.c:429 kasan_kmalloc include/linux/kasan.h:219 [inline] kmem_cache_alloc_trace+0x200/0x300 mm/slub.c:2919 kmalloc include/linux/slab.h:552 [inline] kzalloc include/linux/slab.h:682 [inline] __rdma_create_id+0x65/0x4f0 drivers/infiniband/core/cma.c:838 rdma_create_user_id+0x7f/0xc0 drivers/infiniband/core/cma.c:891 ucma_create_id+0x1de/0x5c0 drivers/infiniband/core/ucma.c:461 ucma_write+0x279/0x350 drivers/infiniband/core/ucma.c:1732 vfs_write+0x220/0xab0 fs/read_write.c:603 ksys_write+0x11b/0x220 fs/read_write.c:658 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Freed by task 13811: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track+0x3d/0x70 mm/kasan/common.c:46 kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:356 ____kasan_slab_free+0xe2/0x110 mm/kasan/common.c:362 kasan_slab_free include/linux/kasan.h:192 [inline] slab_free_hook mm/slub.c:1547 [inline] slab_free_freelist_hook+0xd6/0x1a0 mm/slub.c:1580 slab_free mm/slub.c:3143 [inline] kfree+0xd1/0x2a0 mm/slub.c:4139 ucma_close_id drivers/infiniband/core/ucma.c:185 [inline] ucma_destroy_private_ctx+0x111/0xa50 drivers/infiniband/core/ucma.c:576 ucma_close+0xef/0x170 drivers/infiniband/core/ucma.c:1797 __fput+0x34d/0x7a0 fs/file_table.c:280 task_work_run+0x137/0x1c0 kernel/task_work.c:140 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop kernel/entry/common.c:174 [inline] exit_to_user_mode_prepare+0x10b/0x1e0 kernel/entry/common.c:201 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline] syscall_exit_to_user_mode+0x48/0x180 kernel/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x44/0xa9 The buggy address belongs to the object at ffff88802f7e0000 which belongs to the cache kmalloc-2k of size 2048 The buggy address is located 420 bytes inside of 2048-byte region [ffff88802f7e0000, ffff88802f7e0800) The buggy address belongs to the page: page:00000000f60da0cc refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2f7e0 head:00000000f60da0cc order:3 compound_mapcount:0 compound_pincount:0 flags: 0xfff00000010200(slab|head) raw: 00fff00000010200 dead000000000100 dead000000000122 ffff888011042000 raw: 0000000000000000 0000000080080008 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff88802f7e0080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88802f7e0100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff88802f7e0180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88802f7e0200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88802f7e0280: 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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2021/02/21 07:22 | upstream | e767b3530acb | 3e5ed8b4 | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | KASAN: use-after-free Write in addr_resolve |