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KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump

Status: upstream: reported C repro on 2025/03/31 14:28
Subsystems: bluetooth
[Documentation on labels]
Reported-by: syzbot+ac3c79181f6aecc5120c@syzkaller.appspotmail.com
First crash: 99d, last: 17h37m
▶ ▼ Discussions (4)
Title Replies (including bot) Last reply
[PATCH] HCI: coredump: Use tmp buffer with dev_coredumpv 1 (1) 2025/06/14 04:19
[syzbot] [bluetooth?] KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump 3 (10) 2025/06/11 02:42
[syzbot] Monthly bluetooth report (May 2025) 0 (1) 2025/05/22 12:58
[syzbot] Monthly bluetooth report (Apr 2025) 0 (1) 2025/04/22 10:11
▶ ▼ Last patch testing requests (5)
Created Duration User Patch Repo Result
2025/06/11 02:42 24m ipravdin.official@gmail.com patch upstream OK log
2025/06/08 22:26 15m ipravdin.official@gmail.com patch upstream error
2025/06/08 19:21 53m ipravdin.official@gmail.com patch upstream report log
2025/06/08 18:54 16m ipravdin.official@gmail.com patch upstream report log
2025/04/23 11:20 17m contact@arnaud-lcm.com patch upstream report log

Sample crash report:
==================================================================
BUG: KASAN: vmalloc-out-of-bounds in skb_put_data include/linux/skbuff.h:2753 [inline]
BUG: KASAN: vmalloc-out-of-bounds in hci_devcd_dump+0x142/0x240 net/bluetooth/coredump.c:258
Read of size 140 at addr ffffc90000abe000 by task kworker/u9:1/5150

CPU: 1 UID: 0 PID: 5150 Comm: kworker/u9:1 Not tainted 6.16.0-rc3-syzkaller-00044-g7595b66ae9de #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: hci0 hci_devcd_timeout
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:408 [inline]
 print_report+0xcd/0x680 mm/kasan/report.c:521
 kasan_report+0xe0/0x110 mm/kasan/report.c:634
 check_region_inline mm/kasan/generic.c:183 [inline]
 kasan_check_range+0x100/0x1b0 mm/kasan/generic.c:189
 __asan_memcpy+0x23/0x60 mm/kasan/shadow.c:105
 skb_put_data include/linux/skbuff.h:2753 [inline]
 hci_devcd_dump+0x142/0x240 net/bluetooth/coredump.c:258
 hci_devcd_timeout+0xb5/0x2e0 net/bluetooth/coredump.c:413
 process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3238
 process_scheduled_works kernel/workqueue.c:3321 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3402
 kthread+0x3c5/0x780 kernel/kthread.c:464
 ret_from_fork+0x5d4/0x6f0 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

The buggy address ffffc90000abe000 belongs to a vmalloc virtual mapping
Memory state around the buggy address:
 ffffc90000abdf00: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
 ffffc90000abdf80: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
>ffffc90000abe000: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
                   ^
 ffffc90000abe080: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
 ffffc90000abe100: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
==================================================================

Crashes (1049):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/06/25 16:13 upstream 7595b66ae9de 26d77996 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/06/25 09:33 upstream 7595b66ae9de 26d77996 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/06/20 20:43 upstream 41687a5c6f8b 804b3919 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/06/19 15:21 upstream fb4d33ab452e ed3e87f7 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/06/19 09:32 upstream fb4d33ab452e ed3e87f7 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/06/10 03:09 upstream 19272b37aa4f 4826c28e .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/06/01 18:05 upstream 7d4e49a77d99 3d2f584d .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/05/18 05:09 upstream 5723cc3450bc f41472b0 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/05/14 16:27 upstream 9f35e33144ae a4fa04ef .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/05/10 07:54 upstream 0e1329d4045c 77908e5f .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/05/09 20:35 upstream 9c69f8884904 43803998 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/05/07 06:23 upstream 0d8d44db295c 350f4ffc .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/05/04 10:45 upstream 2a239ffbebb5 b0714e37 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/05/02 12:19 upstream ebd297a2affa d7f099d1 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/04/27 19:01 upstream 5bc1018675ec c6b4fb39 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/04/26 20:07 upstream f1a3944c860b c6b4fb39 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/04/23 06:06 upstream bc3372351d0c 53a8b9bd .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/04/21 11:57 upstream 9d7a0577c9db 2a20f901 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/04/14 00:47 upstream 5aaaedb0cb54 0bd6db41 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/04/12 06:33 upstream e618ee89561b 0bd6db41 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/04/08 00:12 upstream 0af2f6be1b42 a2ada0e7 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/04/03 10:29 upstream a1b5bd45d4ee 996a9618 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/07/04 15:50 upstream 4c06e63b9203 d869b261 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/07/04 15:49 upstream 4c06e63b9203 d869b261 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/07/04 12:05 upstream 4c06e63b9203 76ad128c .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/07/04 08:49 upstream 4c06e63b9203 76ad128c .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/07/04 08:37 upstream 4c06e63b9203 76ad128c .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/07/03 12:16 upstream b4911fb0b060 a3c808e4 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/07/03 00:22 upstream b4911fb0b060 115ceea7 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/07/02 17:50 upstream 66701750d556 0cd59a8f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/07/02 17:35 upstream 66701750d556 0cd59a8f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/07/02 17:20 upstream 66701750d556 0cd59a8f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/07/02 17:16 upstream 66701750d556 0cd59a8f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/07/02 13:55 upstream 66701750d556 0cd59a8f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/07/02 06:59 upstream 66701750d556 bc80e4f0 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/07/02 06:52 upstream 66701750d556 bc80e4f0 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/07/01 12:10 upstream 66701750d556 091a06cd .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/07/01 10:15 upstream 66701750d556 6e83b42d .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/06/30 12:31 upstream d0b3b7b22dfa fc9d8ee5 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/06/30 07:22 upstream d0b3b7b22dfa fc9d8ee5 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/06/29 11:26 upstream dfba48a70cb6 fc9d8ee5 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/06/28 17:50 upstream aaf724ed6926 fc9d8ee5 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/06/26 19:27 upstream ee88bddf7f2f 1ae8177e .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/06/26 05:41 upstream 92ca6c498a5e 26d77996 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/06/25 19:17 upstream 7595b66ae9de 26d77996 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/06/25 08:15 upstream 7595b66ae9de 26d77996 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/06/22 21:10 upstream b67ec639010f d6cdfb8a .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/06/22 15:58 upstream 739a6c93cc75 d6cdfb8a .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/06/22 15:41 upstream 739a6c93cc75 d6cdfb8a .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/06/20 19:29 upstream 41687a5c6f8b 804b3919 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/06/18 05:05 upstream 4663747812d1 74c9d252 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/06/18 05:01 upstream 4663747812d1 74c9d252 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/06/17 17:41 upstream 9afe652958c3 74c9d252 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/06/17 15:21 upstream 9afe652958c3 74c9d252 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/06/15 17:39 upstream 08215f5486ec 5f4b362d .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/06/15 05:17 upstream 8c6bc74c7f89 5f4b362d .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/06/15 02:35 upstream 8c6bc74c7f89 5f4b362d .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/06/15 02:13 upstream 8c6bc74c7f89 5f4b362d .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/06/15 01:41 upstream 8c6bc74c7f89 5f4b362d .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/06/14 14:47 upstream 4774cfe3543a 5f4b362d .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/06/14 12:55 upstream 4774cfe3543a 0e8da31f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/06/13 10:57 upstream 27605c8c0f69 98683f8f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/06/13 09:51 upstream 27605c8c0f69 98683f8f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/06/13 09:47 upstream 27605c8c0f69 98683f8f .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/03/31 11:51 upstream 4e82c87058f4 d3999433 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
2025/03/27 14:22 upstream 1a9239bb4253 928390c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto KASAN: vmalloc-out-of-bounds Read in hci_devcd_dump
* Struck through repros no longer work on HEAD.