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| Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
|---|---|---|---|---|---|---|---|---|---|
| upstream | general protection fault in nfc_alloc_send_skb net nfc | C | done | 2 | 848d | 842d | 20/26 | fixed on 2022/03/08 16:11 | |
| linux-4.19 | general protection fault in nfc_alloc_send_skb | C | error | 3 | 583d | 847d | 0/1 | upstream: reported C repro on 2021/12/31 22:21 |
llcp: nfc_llcp_send_ui_frame: Could not allocate PDU (error=-6) ================================================================== BUG: KASAN: slab-use-after-free in nfc_alloc_send_skb+0x149/0x1c0 net/nfc/core.c:722 Read of size 4 at addr ffff888075231548 by task syz-executor193/5062 CPU: 1 PID: 5062 Comm: syz-executor193 Not tainted 6.6.0-syzkaller-14263-gaea6bf908d73 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:364 [inline] print_report+0x163/0x540 mm/kasan/report.c:475 kasan_report+0x142/0x170 mm/kasan/report.c:588 nfc_alloc_send_skb+0x149/0x1c0 net/nfc/core.c:722 nfc_llcp_send_ui_frame+0x2ac/0x670 net/nfc/llcp_commands.c:766 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] ____sys_sendmsg+0x592/0x890 net/socket.c:2588 ___sys_sendmsg net/socket.c:2642 [inline] __sys_sendmmsg+0x3b2/0x730 net/socket.c:2728 __do_sys_sendmmsg net/socket.c:2757 [inline] __se_sys_sendmmsg net/socket.c:2754 [inline] __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2754 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7fa0a3c77969 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fa0a3c38208 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007fa0a3d03328 RCX: 00007fa0a3c77969 RDX: 0000000000000001 RSI: 00000000200013c0 RDI: 0000000000000004 RBP: 00007fa0a3d03320 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa0a3cd01a4 R13: 0000000000000039 R14: 00007fa0a3d010f0 R15: 00007fa0a3c38670 </TASK> Allocated by task 5062: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4f/0x70 mm/kasan/common.c:52 ____kasan_kmalloc mm/kasan/common.c:374 [inline] __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:383 kmalloc include/linux/slab.h:600 [inline] kzalloc include/linux/slab.h:721 [inline] nfc_allocate_device+0x12f/0x520 net/nfc/core.c:1065 nci_allocate_device+0x1e2/0x360 net/nfc/nci/core.c:1179 virtual_ncidev_open+0x75/0x1b0 drivers/nfc/virtual_ncidev.c:136 misc_open+0x30b/0x380 drivers/char/misc.c:165 chrdev_open+0x5ab/0x630 fs/char_dev.c:414 do_dentry_open+0x8fd/0x1590 fs/open.c:948 do_open fs/namei.c:3622 [inline] path_openat+0x2845/0x3280 fs/namei.c:3779 do_filp_open+0x234/0x490 fs/namei.c:3809 do_sys_openat2+0x13e/0x1d0 fs/open.c:1440 do_sys_open fs/open.c:1455 [inline] __do_sys_openat fs/open.c:1471 [inline] __se_sys_openat fs/open.c:1466 [inline] __x64_sys_openat+0x247/0x290 fs/open.c:1466 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b Freed by task 5061: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4f/0x70 mm/kasan/common.c:52 kasan_save_free_info+0x28/0x40 mm/kasan/generic.c:522 ____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236 kasan_slab_free include/linux/kasan.h:164 [inline] slab_free_hook mm/slub.c:1800 [inline] slab_free_freelist_hook mm/slub.c:1826 [inline] slab_free mm/slub.c:3809 [inline] __kmem_cache_free+0x263/0x3a0 mm/slub.c:3822 device_release+0x95/0x1c0 kobject_cleanup lib/kobject.c:682 [inline] kobject_release lib/kobject.c:716 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x1ee/0x430 lib/kobject.c:733 nfc_free_device include/net/nfc/nfc.h:213 [inline] nci_free_device+0x38/0x50 net/nfc/nci/core.c:1209 virtual_ncidev_close+0x70/0x90 drivers/nfc/virtual_ncidev.c:164 __fput+0x3cc/0xa10 fs/file_table.c:394 __do_sys_close fs/open.c:1590 [inline] __se_sys_close+0x15f/0x220 fs/open.c:1575 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b The buggy address belongs to the object at ffff888075231000 which belongs to the cache kmalloc-2k of size 2048 The buggy address is located 1352 bytes inside of freed 2048-byte region [ffff888075231000, ffff888075231800) The buggy address belongs to the physical page: page:ffffea0001d48c00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x75230 head:ffffea0001d48c00 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0 flags: 0xfff00000000840(slab|head|node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 00fff00000000840 ffff888012c42000 dead000000000122 0000000000000000 raw: 0000000000000000 0000000080080008 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 5062, tgid 5061 (syz-executor193), ts 56272329966, free_ts 55738397890 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x1e6/0x210 mm/page_alloc.c:1537 prep_new_page mm/page_alloc.c:1544 [inline] get_page_from_freelist+0x339a/0x3530 mm/page_alloc.c:3312 __alloc_pages+0x255/0x670 mm/page_alloc.c:4568 alloc_pages_mpol+0x3de/0x640 mm/mempolicy.c:2133 alloc_slab_page+0x6a/0x160 mm/slub.c:1870 allocate_slab mm/slub.c:2017 [inline] new_slab+0x84/0x2f0 mm/slub.c:2070 ___slab_alloc+0xc85/0x1310 mm/slub.c:3223 __slab_alloc mm/slub.c:3322 [inline] __slab_alloc_node mm/slub.c:3375 [inline] slab_alloc_node mm/slub.c:3468 [inline] __kmem_cache_alloc_node+0x21d/0x300 mm/slub.c:3517 kmalloc_trace+0x2a/0xe0 mm/slab_common.c:1098 kmalloc include/linux/slab.h:600 [inline] kzalloc include/linux/slab.h:721 [inline] nci_allocate_device+0xe9/0x360 net/nfc/nci/core.c:1163 virtual_ncidev_open+0x75/0x1b0 drivers/nfc/virtual_ncidev.c:136 misc_open+0x30b/0x380 drivers/char/misc.c:165 chrdev_open+0x5ab/0x630 fs/char_dev.c:414 do_dentry_open+0x8fd/0x1590 fs/open.c:948 do_open fs/namei.c:3622 [inline] path_openat+0x2845/0x3280 fs/namei.c:3779 do_filp_open+0x234/0x490 fs/namei.c:3809 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1137 [inline] free_unref_page_prepare+0x92a/0xa50 mm/page_alloc.c:2347 free_unref_page+0x37/0x3f0 mm/page_alloc.c:2487 __slab_free+0x2f6/0x390 mm/slub.c:3715 qlink_free mm/kasan/quarantine.c:168 [inline] qlist_free_all+0x75/0xe0 mm/kasan/quarantine.c:187 kasan_quarantine_reduce+0x14b/0x160 mm/kasan/quarantine.c:294 __kasan_slab_alloc+0x23/0x70 mm/kasan/common.c:305 kasan_slab_alloc include/linux/kasan.h:188 [inline] slab_post_alloc_hook+0x6c/0x3c0 mm/slab.h:763 slab_alloc_node mm/slub.c:3478 [inline] __kmem_cache_alloc_node+0x1d0/0x300 mm/slub.c:3517 __do_kmalloc_node mm/slab_common.c:1006 [inline] __kmalloc+0xa8/0x230 mm/slab_common.c:1020 kmalloc include/linux/slab.h:604 [inline] tomoyo_add_entry security/tomoyo/common.c:2023 [inline] tomoyo_supervisor+0xe06/0x11f0 security/tomoyo/common.c:2095 tomoyo_audit_env_log security/tomoyo/environ.c:36 [inline] tomoyo_env_perm+0x178/0x210 security/tomoyo/environ.c:63 tomoyo_environ security/tomoyo/domain.c:672 [inline] tomoyo_find_next_domain+0x1383/0x1cf0 security/tomoyo/domain.c:878 tomoyo_bprm_check_security+0x114/0x170 security/tomoyo/tomoyo.c:101 security_bprm_check+0x63/0xa0 security/security.c:1103 search_binary_handler fs/exec.c:1725 [inline] exec_binprm fs/exec.c:1779 [inline] bprm_execve+0x95f/0x18a0 fs/exec.c:1854 do_execveat_common+0x580/0x720 fs/exec.c:1962 Memory state around the buggy address: ffff888075231400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888075231480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff888075231500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888075231580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888075231600: 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023/11/05 09:11 | upstream | aea6bf908d73 | 500bfdc4 | .config | strace log | report | syz | C | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce-smack-root | KASAN: slab-use-after-free Read in nfc_alloc_send_skb | |
| 2023/11/24 20:54 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 8de1e7afcc1c | 5b429f39 | .config | console log | report | syz | C | [disk image] [vmlinux] [kernel image] | ci-upstream-gce-arm64 | KASAN: slab-use-after-free Read in nfc_alloc_send_skb | |
| 2023/11/05 08:32 | upstream | aea6bf908d73 | 500bfdc4 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce-smack-root | KASAN: slab-use-after-free Read in nfc_alloc_send_skb |