syzbot


KMSAN: uninit-value in nci_ntf_packet (3)

Status: upstream: reported C repro on 2024/06/16 13:15
Subsystems: net nfc
[Documentation on labels]
Reported-by: syzbot+3f8fa0edaa75710cd66e@syzkaller.appspotmail.com
First crash: 174d, last: 37d
Discussions (4)
Title Replies (including bot) Last reply
[PATCH] nfc/nci: Fix uninit-value issue in nci_ntf_packet 3 (3) 2024/10/16 08:35
[syzbot] [net?] [nfc?] KMSAN: uninit-value in nci_ntf_packet (3) 1 (4) 2024/10/12 18:00
[syzbot] Monthly nfc report (Sep 2024) 0 (1) 2024/09/17 21:51
[syzbot] Monthly nfc report (Aug 2024) 0 (1) 2024/08/19 07:39
Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KMSAN: uninit-value in nci_ntf_packet net nfc C 79 196d 337d 25/28 fixed on 2024/05/22 23:16
upstream KMSAN: uninit-value in nci_ntf_packet (2) nfc net C 13 178d 190d 25/28 fixed on 2024/06/11 03:41
Last patch testing requests (2)
Created Duration User Patch Repo Result
2024/10/21 00:03 21m retest repro upstream report log
2024/10/12 14:16 32m qianqiang.liu@163.com patch upstream OK log

Sample crash report:
nci: nci_rf_discover_ntf_packet: unsupported rf_tech_and_mode 0xe6
=====================================================
BUG: KMSAN: uninit-value in nci_rf_discover_ntf_packet net/nfc/nci/ntf.c:386 [inline]
BUG: KMSAN: uninit-value in nci_ntf_packet+0x2ac6/0x39c0 net/nfc/nci/ntf.c:798
 nci_rf_discover_ntf_packet net/nfc/nci/ntf.c:386 [inline]
 nci_ntf_packet+0x2ac6/0x39c0 net/nfc/nci/ntf.c:798
 nci_rx_work+0x408/0x6f0 net/nfc/nci/core.c:1544
 process_one_work kernel/workqueue.c:3229 [inline]
 process_scheduled_works+0xae0/0x1c40 kernel/workqueue.c:3310
 worker_thread+0xea7/0x14f0 kernel/workqueue.c:3391
 kthread+0x3e2/0x540 kernel/kthread.c:389
 ret_from_fork+0x6d/0x90 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

Uninit was created at:
 slab_post_alloc_hook mm/slub.c:4091 [inline]
 slab_alloc_node mm/slub.c:4134 [inline]
 kmem_cache_alloc_node_noprof+0x6bf/0xb80 mm/slub.c:4186
 kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:587
 __alloc_skb+0x363/0x7b0 net/core/skbuff.c:678
 alloc_skb include/linux/skbuff.h:1322 [inline]
 virtual_ncidev_write+0x67/0x380 drivers/nfc/virtual_ncidev.c:120
 vfs_write+0x487/0x1540 fs/read_write.c:681
 ksys_write+0x24f/0x4c0 fs/read_write.c:736
 __do_sys_write fs/read_write.c:748 [inline]
 __se_sys_write fs/read_write.c:745 [inline]
 __x64_sys_write+0x93/0xe0 fs/read_write.c:745
 x64_sys_call+0x306a/0x3ba0 arch/x86/include/generated/asm/syscalls_64.h:2
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

CPU: 1 UID: 0 PID: 2937 Comm: kworker/u8:9 Not tainted 6.12.0-rc1-syzkaller-00349-g8f602276d390 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: nfc2_nci_rx_wq nci_rx_work
=====================================================

Crashes (28):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/10/06 23:19 upstream 8f602276d390 d7906eff .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/10/27 18:05 upstream 850925a8133c 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/10/06 17:17 upstream 8f602276d390 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/09/30 21:57 upstream 9852d85ec9d4 bbd4e0a4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/09/30 21:57 upstream 9852d85ec9d4 bbd4e0a4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/09/14 15:57 upstream b7718454f937 ff60e2ca .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/09/14 15:57 upstream b7718454f937 ff60e2ca .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/08/21 16:44 upstream b311c1b497e5 db5852f9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/08/19 19:11 upstream 47ac09b91bef 9f0ab3fb .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/08/14 10:00 upstream 6b0f8db921ab bde81f6f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/08/14 08:23 upstream 6b0f8db921ab bde81f6f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/08/14 08:23 upstream 6b0f8db921ab bde81f6f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/08/14 07:55 upstream 6b0f8db921ab bde81f6f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/08/13 00:24 upstream d74da846046a 7b0f4b46 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/08/13 00:23 upstream d74da846046a 7b0f4b46 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/08/09 23:39 upstream ee9a43b7cfe2 a9e7e9e3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/08/09 23:39 upstream ee9a43b7cfe2 a9e7e9e3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/08/03 01:29 upstream 948752d2e010 53683cf2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/07/21 01:52 upstream 3c3ff7be9729 b88348e9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/07/21 01:52 upstream 3c3ff7be9729 b88348e9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/07/21 01:50 upstream 3c3ff7be9729 b88348e9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/07/21 01:50 upstream 3c3ff7be9729 b88348e9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/07/20 20:25 upstream 3c3ff7be9729 b88348e9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/07/20 12:29 upstream a4f928552058 b88348e9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/06/12 14:12 upstream 614da38e2f7a 4d75f4f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/06/12 14:12 upstream 614da38e2f7a 4d75f4f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/06/12 13:42 upstream 614da38e2f7a 4d75f4f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/06/12 13:12 upstream 614da38e2f7a 4d75f4f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
* Struck through repros no longer work on HEAD.