syzbot


KMSAN: uninit-value in nci_ntf_packet (2)

Status: fixed on 2024/06/11 03:41
Subsystems: nfc net
[Documentation on labels]
Reported-by: syzbot+71bfed2b2bcea46c98f2@syzkaller.appspotmail.com
Fix commit: 068648aab72c nfc/nci: Add the inconsistency check between the input data length and count
First crash: 30d, last: 13d
Discussions (7)
Title Replies (including bot) Last reply
[PATCH AUTOSEL 5.15 11/12] nfc/nci: Add the inconsistency check between the input data length and count 1 (1) 2024/06/05 12:05
[PATCH AUTOSEL 6.1 11/14] nfc/nci: Add the inconsistency check between the input data length and count 1 (1) 2024/06/05 12:04
[PATCH AUTOSEL 6.6 12/18] nfc/nci: Add the inconsistency check between the input data length and count 1 (1) 2024/06/05 12:03
[PATCH AUTOSEL 6.8 12/18] nfc/nci: Add the inconsistency check between the input data length and count 1 (1) 2024/06/05 12:03
[PATCH AUTOSEL 6.9 16/23] nfc/nci: Add the inconsistency check between the input data length and count 1 (1) 2024/06/05 12:01
[PATCH] nfc/nci: Add the inconsistency check between the input data length and count 2 (2) 2024/05/29 12:10
[syzbot] [nfc?] [net?] KMSAN: uninit-value in nci_ntf_packet (2) 1 (3) 2024/05/28 02:50
Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KMSAN: uninit-value in nci_ntf_packet (3) net nfc 4 9d19h 5d20h 0/27 upstream: reported on 2024/06/16 13:15
upstream KMSAN: uninit-value in nci_ntf_packet net nfc C 79 32d 172d 26/27 fixed on 2024/05/22 23:16
Last patch testing requests (1)
Created Duration User Patch Repo Result
2024/05/28 02:15 26m eadavis@qq.com patch https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 614da38e2f7a OK log

Sample crash report:
=====================================================
BUG: KMSAN: uninit-value in nci_rf_intf_activated_ntf_packet net/nfc/nci/ntf.c:620 [inline]
BUG: KMSAN: uninit-value in nci_ntf_packet+0x27f4/0x39c0 net/nfc/nci/ntf.c:802
 nci_rf_intf_activated_ntf_packet net/nfc/nci/ntf.c:620 [inline]
 nci_ntf_packet+0x27f4/0x39c0 net/nfc/nci/ntf.c:802
 nci_rx_work+0x288/0x5d0 net/nfc/nci/core.c:1532
 process_one_work kernel/workqueue.c:3267 [inline]
 process_scheduled_works+0xa81/0x1bd0 kernel/workqueue.c:3348
 worker_thread+0xea5/0x1560 kernel/workqueue.c:3429
 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:3877 [inline]
 slab_alloc_node mm/slub.c:3918 [inline]
 kmem_cache_alloc_node+0x622/0xc90 mm/slub.c:3961
 kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:577
 __alloc_skb+0x35b/0x7a0 net/core/skbuff.c:668
 alloc_skb include/linux/skbuff.h:1319 [inline]
 virtual_ncidev_write+0x6d/0x290 drivers/nfc/virtual_ncidev.c:120
 vfs_write+0x497/0x14d0 fs/read_write.c:588
 ksys_write+0x20f/0x4c0 fs/read_write.c:643
 __do_sys_write fs/read_write.c:655 [inline]
 __se_sys_write fs/read_write.c:652 [inline]
 __x64_sys_write+0x93/0xe0 fs/read_write.c:652
 x64_sys_call+0x3062/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:2
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

CPU: 1 PID: 3730 Comm: kworker/u8:19 Not tainted 6.9.0-syzkaller-02707-g614da38e2f7a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Workqueue: nfc2_nci_rx_wq nci_rx_work
=====================================================

Crashes (13):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/05/23 06:55 upstream 614da38e2f7a 4d098039 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/06/08 22:58 upstream 614da38e2f7a 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/06/07 17:27 upstream 614da38e2f7a 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/06/07 16:56 upstream 614da38e2f7a 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/06/07 16:56 upstream 614da38e2f7a 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/06/07 16:56 upstream 614da38e2f7a 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/05/29 14:03 upstream 614da38e2f7a 34889ee3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/05/27 13:03 upstream 614da38e2f7a a10a183e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/05/26 18:47 upstream 614da38e2f7a a10a183e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/05/26 18:47 upstream 614da38e2f7a a10a183e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/05/23 00:37 upstream 614da38e2f7a 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/05/23 00:37 upstream 614da38e2f7a 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-root KMSAN: uninit-value in nci_ntf_packet
2024/05/23 00:29 upstream 614da38e2f7a 4d098039 .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.