[syzbot] [dri?] [usb?] KASAN: slab-out-of-bounds Read in drm_property_add_enum

[syzbot] [dri?] [usb?] KASAN: slab-out-of-bounds Read in drm_property_add_enum

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit:    15ef2f78c49d Merge tag 'input-for-v7.2-rc7' of git://git.k..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1128b279580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=65bd434865e8f85c
dashboard link: https://syzkaller.appspot.com/bug?extid=9ae8e7884e451eaed5b4
compiler:       gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
userspace arch: i386
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10342a25580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=13616949580000

Downloadable assets:
disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/d900f083ada3/non_bootable_disk-15ef2f78.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/d8751b427e94/vmlinux-15ef2f78.xz
kernel image: https://storage.googleapis.com/syzbot-assets/42d53b06bdc7/bzImage-15ef2f78.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+9ae8e7884e451eaed5b4@syzkaller.appspotmail.com

usb 5-1: config 1 interface 0 altsetting 0 has 1 endpoint descriptor, different from the interface descriptor's value: 2
usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
==================================================================
BUG: KASAN: slab-out-of-bounds in strlen+0x93/0xa0 lib/string.c:402
Read of size 1 at addr ffff888051428900 by task kworker/3:3/5802

CPU: 3 UID: 0 PID: 5802 Comm: kworker/3:3 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0x13d/0x4b0 mm/kasan/report.c:482
 kasan_report+0xdf/0x1c0 mm/kasan/report.c:595
 strlen+0x93/0xa0 lib/string.c:402
 __fortify_strlen include/linux/fortify-string.h:218 [inline]
 drm_property_add_enum+0x2d/0x590 drivers/gpu/drm/drm_property.c:396
 drm_mode_create_tv_properties_legacy+0x3e9/0x4c0 drivers/gpu/drm/drm_connector.c:2216
 gud_connector_add_tv_mode+0x1d7/0x2b0 drivers/gpu/drm/gud/gud_connector.c:402
 gud_connector_add_properties drivers/gpu/drm/gud/gud_connector.c:525 [inline]
 gud_connector_create drivers/gpu/drm/gud/gud_connector.c:680 [inline]
 gud_get_connectors+0xbd9/0x1700 drivers/gpu/drm/gud/gud_connector.c:717
 gud_probe+0x17aa/0x1c20 drivers/gpu/drm/gud/gud_drv.c:635
 usb_probe_interface+0x303/0x8f0 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1026
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1098
 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x64/0x160 drivers/base/bus.c:620
 device_add+0x121d/0x1970 drivers/base/core.c:3772
 usb_set_configuration+0xd97/0x1c60 drivers/usb/core/message.c:2268
 usb_generic_driver_probe+0xa1/0xe0 drivers/usb/core/generic.c:250
 usb_probe_device+0xef/0x400 drivers/usb/core/driver.c:291
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1026
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1098
 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x64/0x160 drivers/base/bus.c:620
 device_add+0x121d/0x1970 drivers/base/core.c:3772
 usb_new_device.part.0+0xcc2/0x1686 drivers/usb/core/hub.c:2703
 usb_new_device include/linux/workqueue.h:714 [inline]
 hub_port_connect drivers/usb/core/hub.c:5575 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5715 [inline]
 port_event drivers/usb/core/hub.c:5879 [inline]
 hub_event.cold+0x1e3/0xe90 drivers/usb/core/hub.c:5961
 process_one_work+0xa23/0x1940 kernel/workqueue.c:3322
 process_scheduled_works kernel/workqueue.c:3405 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3486
 kthread+0x370/0x450 kernel/kthread.c:436
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Allocated by task 5802:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 poison_kmalloc_redzone mm/kasan/common.c:398 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:415
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __kmalloc_cache_noprof+0x2e5/0x6c0 mm/slub.c:5489
 _kmalloc_noprof include/linux/slab.h:988 [inline]
 gud_connector_add_tv_mode+0xac/0x2b0 drivers/gpu/drm/gud/gud_connector.c:385
 gud_connector_add_properties drivers/gpu/drm/gud/gud_connector.c:525 [inline]
 gud_connector_create drivers/gpu/drm/gud/gud_connector.c:680 [inline]
 gud_get_connectors+0xbd9/0x1700 drivers/gpu/drm/gud/gud_connector.c:717
 gud_probe+0x17aa/0x1c20 drivers/gpu/drm/gud/gud_drv.c:635
 usb_probe_interface+0x303/0x8f0 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1026
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1098
 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x64/0x160 drivers/base/bus.c:620
 device_add+0x121d/0x1970 drivers/base/core.c:3772
 usb_set_configuration+0xd97/0x1c60 drivers/usb/core/message.c:2268
 usb_generic_driver_probe+0xa1/0xe0 drivers/usb/core/generic.c:250
 usb_probe_device+0xef/0x400 drivers/usb/core/driver.c:291
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1026
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1098
 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x64/0x160 drivers/base/bus.c:620
 device_add+0x121d/0x1970 drivers/base/core.c:3772
 usb_new_device.part.0+0xcc2/0x1686 drivers/usb/core/hub.c:2703
 usb_new_device include/linux/workqueue.h:714 [inline]
 hub_port_connect drivers/usb/core/hub.c:5575 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5715 [inline]
 port_event drivers/usb/core/hub.c:5879 [inline]
 hub_event.cold+0x1e3/0xe90 drivers/usb/core/hub.c:5961
 process_one_work+0xa23/0x1940 kernel/workqueue.c:3322
 process_scheduled_works kernel/workqueue.c:3405 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3486
 kthread+0x370/0x450 kernel/kthread.c:436
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

The buggy address belongs to the object at ffff888051428800
 which belongs to the cache kmalloc-256 of size 256
The buggy address is located 0 bytes to the right of
 allocated 256-byte region [ffff888051428800, ffff888051428900)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888051429600 pfn:0x51428
head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0x4fff00000000240(workingset|head|node=1|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 04fff00000000240 ffff88801bc42b40 ffffea0001437110 ffffea0001434390
raw: ffff888051429600 000000080010000d 00000000f5000000 0000000000000000
head: 04fff00000000240 ffff88801bc42b40 ffffea0001437110 ffffea0001434390
head: ffff888051429600 000000080010000d 00000000f5000000 0000000000000000
head: 04fff00000000001 ffffffffffffff81 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 1, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5782, tgid 5782 (syz-executor), ts 56761436248, free_ts 56269161284
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0xfd/0x120 mm/page_alloc.c:1859
 prep_new_page mm/page_alloc.c:1867 [inline]
 get_page_from_freelist+0xf48/0x3530 mm/page_alloc.c:3946
 __alloc_frozen_pages_noprof+0x299/0x2dc0 mm/page_alloc.c:5304
 alloc_slab_page mm/slub.c:3266 [inline]
 allocate_slab mm/slub.c:3380 [inline]
 new_slab+0xa2/0x640 mm/slub.c:3426
 refill_objects+0xe3/0x410 mm/slub.c:7310
 refill_sheaf mm/slub.c:2804 [inline]
 __pcs_replace_empty_main+0x376/0x680 mm/slub.c:4675
 alloc_from_pcs mm/slub.c:4773 [inline]
 slab_alloc_node mm/slub.c:4905 [inline]
 __kmalloc_cache_noprof+0x479/0x6c0 mm/slub.c:5485
 _kmalloc_noprof include/linux/slab.h:988 [inline]
 _kzalloc_noprof include/linux/slab.h:1309 [inline]
 ____ip_mc_inc_group+0x40b/0x10d0 net/ipv4/igmp.c:1563
 __ip_mc_inc_group net/ipv4/igmp.c:1601 [inline]
 ip_mc_inc_group net/ipv4/igmp.c:1607 [inline]
 ip_mc_up+0x154/0x390 net/ipv4/igmp.c:1912
 inetdev_event+0x6c3/0x17f0 net/ipv4/devinet.c:1630
 notifier_call_chain+0x99/0x3f0 kernel/notifier.c:85
 call_netdevice_notifiers_info+0xbe/0x110 net/core/dev.c:2250
 call_netdevice_notifiers_extack net/core/dev.c:2288 [inline]
 call_netdevice_notifiers net/core/dev.c:2302 [inline]
 __dev_notify_flags+0x12c/0x2e0 net/core/dev.c:9803
 netif_change_flags+0x108/0x160 net/core/dev.c:9832
 do_setlink.isra.0+0x1ac4/0x3e60 net/core/rtnetlink.c:3215
 rtnl_changelink net/core/rtnetlink.c:3849 [inline]
 __rtnl_newlink net/core/rtnetlink.c:4022 [inline]
 rtnl_newlink+0x11c2/0x2380 net/core/rtnetlink.c:4159
page last free pid 5782 tgid 5782 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 __free_pages_prepare mm/page_alloc.c:1406 [inline]
 __free_frozen_pages+0x79f/0x1090 mm/page_alloc.c:2950
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x47/0xf0 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x1a0/0x1f0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:350
 kasan_slab_alloc include/linux/kasan.h:253 [inline]
 slab_post_alloc_hook mm/slub.c:4584 [inline]
 slab_alloc_node mm/slub.c:4917 [inline]
 __kmalloc_cache_noprof+0x265/0x6c0 mm/slub.c:5485
 _kmalloc_noprof include/linux/slab.h:988 [inline]
 _kzalloc_noprof include/linux/slab.h:1309 [inline]
 ref_tracker_alloc+0x190/0x590 lib/ref_tracker.c:270
 __netdev_tracker_alloc include/linux/netdevice.h:4496 [inline]
 netdev_hold include/linux/netdevice.h:4525 [inline]
 netdev_hold include/linux/netdevice.h:4520 [inline]
 register_netdevice+0x17e7/0x25a0 net/core/dev.c:11474
 rtnl_newlink_create net/core/rtnetlink.c:3915 [inline]
 __rtnl_newlink net/core/rtnetlink.c:4044 [inline]
 rtnl_newlink+0x1df0/0x2380 net/core/rtnetlink.c:4159
 rtnetlink_rcv_msg+0x95e/0xe90 net/core/rtnetlink.c:7076
 netlink_rcv_skb+0x159/0x420 net/netlink/af_netlink.c:2556
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x585/0x850 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x8b0/0xda0 net/netlink/af_netlink.c:1900
 sock_sendmsg_nosec net/socket.c:775 [inline]
 __sock_sendmsg net/socket.c:790 [inline]
 __sys_sendto+0x48b/0x4e0 net/socket.c:2252
 __do_compat_sys_socketcall net/compat.c:474 [inline]
 __se_compat_sys_socketcall net/compat.c:422 [inline]
 __ia32_compat_sys_socketcall+0x59a/0x770 net/compat.c:422
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline]
 __do_fast_syscall_32+0xe7/0x970 arch/x86/entry/syscall_32.c:307
 do_fast_syscall_32+0x32/0x70 arch/x86/entry/syscall_32.c:332

Memory state around the buggy address:
 ffff888051428800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888051428880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff888051428900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                   ^
 ffff888051428980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888051428a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================


---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@googlegroups.com.

syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.

If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title

If you want syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.

If you want to overwrite report's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)

If the report is a duplicate of another one, reply with:
#syz dup: exact-subject-of-another-report

If you want to undo deduplication, reply with:
#syz undup

Re: [syzbot] [dri?] [usb?] KASAN: slab-out-of-bounds Read in drm_property_add_enum

[syzbot]

Hello,

syzbot tried to test the proposed patch but the build/boot failed:

failed to apply patch:
error: corrupt patch at line 6



Tested on:

commit:         bd5f485f Merge tag 'soc-arm-7.3' of git://git.kernel.o..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=65bd434865e8f85c
dashboard link: https://syzkaller.appspot.com/bug?extid=9ae8e7884e451eaed5b4
compiler:       
userspace arch: i386
patch:          https://syzkaller.appspot.com/x/patch.diff?x=168a7679580000

Re: [syzbot] [dri?] [usb?] KASAN: slab-out-of-bounds Read in drm_property_add_enum

[syzbot]

> Retry
> #syz test diff --git a/drivers/gpu/drm/gud/gud_connector.c 

I've failed to parse your command.
Did you perhaps forget to provide the branch name, or added an extra ':'?
Please use one of the two supported formats:
1. #syz test
2. #syz test: repo branch-or-commit-hash
Note the lack of ':' in option 1.

> b/drivers/gpu/drm/gud/gud_connector.c index ea0cca58b7c89..8141c3a1e30ad 
> 100644 --- a/drivers/gpu/drm/gud/gud_connector.c +++ 
> b/drivers/gpu/drm/gud/gud_connector.c @@ -396,8 +396,16 @@ static int 
> gud_connector_add_tv_mode(struct gud_device *gdrm, struct drm_connect } 
> num_modes = ret / GUD_CONNECTOR_TV_MODE_NAME_LEN; - for (i = 0; i < 
> num_modes; i++) - modes[i] = &buf[i * GUD_CONNECTOR_TV_MODE_NAME_LEN]; + for 
> (i = 0; i < num_modes; i++) { + char *mode = &buf[i * 
> GUD_CONNECTOR_TV_MODE_NAME_LEN]; + + if (!memchr(mode, '\0', 
> GUD_CONNECTOR_TV_MODE_NAME_LEN)) { + ret = -EIO; + goto free; + } + + 
> modes[i] = mode; + } ret = 
> drm_mode_create_tv_properties_legacy(connector->dev, num_modes, modes); free
> :
> On Wednesday, August 19, 2026 at 2:21:05 PM UTC+8 syzbot wrote:
>
>> Hello,
>>
>> syzbot tried to test the proposed patch but the build/boot failed:
>>
>> failed to apply patch:
>> error: corrupt patch at line 6
>>
>>
>>
>> Tested on:
>>
>> commit: bd5f485f Merge tag 'soc-arm-7.3' of git://git.kernel.o..
>> git tree: upstream
>> kernel config: https://syzkaller.appspot.com/x/.config?x=65bd434865e8f85c
>> dashboard link: 
>> https://syzkaller.appspot.com/bug?extid=9ae8e7884e451eaed5b4
>> compiler: 
>> userspace arch: i386
>> patch: https://syzkaller.appspot.com/x/patch.diff?x=168a7679580000
>>
>>
>
> -- 
> You received this message because you are subscribed to the Google Groups "syzkaller-bugs" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to syzkaller-bugs+unsubscribe@googlegroups.com.
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Re: [syzbot] [dri?] [usb?] KASAN: slab-out-of-bounds Read in drm_property_add_enum

[syzbot]

Hello,

syzbot tried to test the proposed patch but the build/boot failed:

lost connection to test machine



Warning: Permanently added '[localhost]:25442' (ED25519) to the list of known hosts.
qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0xb4000)
qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x24e000)
[   81.081183][ T1126] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1
[   81.083507][ T1126] ata1: failed to read log page 10h (errno=-5)
[   81.085637][ T1126] ata1.00: NCQ disabled due to excessive errors
[   81.087924][ T1126] ata1.00: exception Emask 0x1 SAct 0x4000c000 SErr 0x0 action 0x0
[   81.090893][ T1126] ata1.00: irq_stat 0x40000000
[   81.092585][ T1126] ata1.00: failed command: WRITE FPDMA QUEUED
[   81.094722][ T1126] ata1.00: cmd 61/70:70:3e:2a:05/12:00:00:00:00/40 tag 14 ncq dma 2416640 ou
[   81.094722][ T1126]          res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error)
[   81.101073][ T1126] ata1.00: status: { DRDY }
[   81.102622][ T1126] ata1.00: error: { ABRT }
[   81.104309][ T1126] ata1.00: failed command: WRITE FPDMA QUEUED
[   81.106364][ T1126] ata1.00: cmd 61/88:78:ae:3c:05/04:00:00:00:00/40 tag 15 ncq dma 593920 out
[   81.106364][ T1126]          res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error)
[   81.113344][ T1126] ata1.00: status: { DRDY }
[   81.114997][ T1126] ata1.00: error: { ABRT }
[   81.116646][ T1126] ata1.00: failed command: WRITE FPDMA QUEUED
[   81.119040][ T1126] ata1.00: cmd 61/a0:f0:66:72:04/05:00:00:00:00/40 tag 30 ncq dma 737280 out
[   81.119040][ T1126]          res 50/04:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error)
[   81.126410][ T1126] ata1.00: status: { DRDY }
[   81.128352][ T1126] ata1.00: error: { ABRT }
[   81.131274][ T1126] ata1.00: configured for UDMA/100
[   81.134138][ T1126] ata1: EH complete
qemu-system-x86_64: hw/ide/core.c:934: ide_dma_cb: Assertion `prep_size >= 0 && prep_size <= n * 512' failed.
Connection to localhost closed by remote host.


syzkaller build log:
go env (err=<nil>)
AR='ar'
CC='gcc'
CGO_CFLAGS='-O2 -g'
CGO_CPPFLAGS=''
CGO_CXXFLAGS='-O2 -g'
CGO_ENABLED='1'
CGO_FFLAGS='-O2 -g'
CGO_LDFLAGS='-O2 -g'
CXX='g++'
GCCGO='gccgo'
GO111MODULE='auto'
GOAMD64='v1'
GOARCH='amd64'
GOAUTH='netrc'
GOBIN=''
GOCACHE='/syzkaller/.cache/go-build'
GOCACHEPROG=''
GODEBUG=''
GOENV='/syzkaller/.config/go/env'
GOEXE=''
GOEXPERIMENT=''
GOFIPS140='off'
GOFLAGS=''
GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build2753574219=/tmp/go-build -gno-record-gcc-switches'
GOHOSTARCH='amd64'
GOHOSTOS='linux'
GOINSECURE=''
GOMOD='/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/go.mod'
GOMODCACHE='/syzkaller/jobs/linux/gopath/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='linux'
GOPATH='/syzkaller/jobs/linux/gopath'
GOPRIVATE=''
GOPROXY='https://proxy.golang.org,direct'
GOROOT='/usr/local/go'
GOSUMDB='sum.golang.org'
GOTELEMETRY='local'
GOTELEMETRYDIR='/syzkaller/.config/go/telemetry'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64'
GOVCS=''
GOVERSION='go1.26.0'
GOWORK=''
PKG_CONFIG='pkg-config'

git status (err=<nil>)
HEAD detached at 746171eef8d
nothing to commit, working tree clean


tput: No value for $TERM and no -T specified
tput: No value for $TERM and no -T specified
Makefile:31: run command via tools/syz-env for best compatibility, see:
Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env
go list -f '{{.Stale}}' -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=746171eef8d3611ed06d1a92ef68d5bee5031150 -X github.com/google/syzkaller/prog.gitRevisionDate=20260814-132435"  ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=746171eef8d3611ed06d1a92ef68d5bee5031150 -X github.com/google/syzkaller/prog.gitRevisionDate=20260814-132435"  ./sys/syz-sysgen
make .descriptions
tput: No value for $TERM and no -T specified
tput: No value for $TERM and no -T specified
Makefile:31: run command via tools/syz-env for best compatibility, see:
Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env
bin/syz-sysgen
touch .descriptions
GOOS=linux GOARCH=amd64 go build -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=746171eef8d3611ed06d1a92ef68d5bee5031150 -X github.com/google/syzkaller/prog.gitRevisionDate=20260814-132435"  -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog
mkdir -p ./bin/linux_386
x86_64-linux-gnu-g++ -o ./bin/linux_386/syz-executor executor/executor.cc \
	-m32 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -std=c++17 -I. -Iexecutor/_include   -DGOOS_linux=1 -DGOARCH_386=1 \
	-DHOSTGOOS_linux=1 -DGIT_REVISION=\"746171eef8d3611ed06d1a92ef68d5bee5031150\"
/usr/bin/ld: /tmp/ccoTJTt1.o: in function `Connection::Connect(char const*, char const*)':
executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x145): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
./tools/check-syzos.sh 2>/dev/null
[INFO] Unsupported architecture '386', skipping check.



Tested on:

commit:         0d5a4a96 drm/gud: validate TV mode names before creati..
git tree:       https://github.com/yutao-intel/linux.git fix-dri
kernel config:  https://syzkaller.appspot.com/x/.config?x=e4131490469a78a3
dashboard link: https://syzkaller.appspot.com/bug?extid=9ae8e7884e451eaed5b4
compiler:       gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
userspace arch: i386

Note: no patches were applied.

Re: [syzbot] [dri?] [usb?] KASAN: slab-out-of-bounds Read in drm_property_add_enum

[syzbot]

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-by: syzbot+9ae8e7884e451eaed5b4@syzkaller.appspotmail.com
Tested-by: syzbot+9ae8e7884e451eaed5b4@syzkaller.appspotmail.com

Tested on:

commit:         0d5a4a96 drm/gud: validate TV mode names before creati..
git tree:       https://github.com/yutao-intel/linux.git fix-dri
console output: https://syzkaller.appspot.com/x/log.txt?x=128d9679580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=e4131490469a78a3
dashboard link: https://syzkaller.appspot.com/bug?extid=9ae8e7884e451eaed5b4
compiler:       gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
userspace arch: i386

Note: no patches were applied.
Note: testing is done by a robot and is best-effort only.