memory leak in v4l2_ctrl_handler_init

ID	Workflow	Result	Correct	Bug	Created	Started	Finished	Revision	Error
52697712	assessment-security	DenialOfService: ✅ Exploitable: ❌ FilesystemTrigger: ❌ NetworkTrigger: ❌ PeripheralTrigger: ✅ RemoteTrigger: ❌ Unprivileged: ❌ UserNamespace: ❌ VMGuestTrigger: ❌ VMHostTrigger: ❌	❓	memory leak in v4l2_ctrl_handler_init_class (3)	2026/06/01 10:16	2026/06/01 10:16	2026/06/01 11:19	6b4a8443
a6b749b2	assessment-security		💥	memory leak in v4l2_ctrl_handler_init_class (3)	2026/05/15 11:41	2026/05/15 11:41	2026/05/15 11:42	9cd3beaa	failed to run ["git" "pull" "origin" "HEAD" "--depth=1" "--allow-unrelated-histories"]: exit status 128 From /app/workdir/repo/linux * branch HEAD -> FETCH_HEAD Updating files: ... truncated to first 200 bytes; open job for full error

Title	Replies (including bot)	Last reply
[PATCH] media: msi2500: free controls when video registration fails	1 (1)	2026/06/28 01:00
[syzbot] Monthly media report (Jun 2026)	0 (1)	2026/06/03 04:32
[PATCH v2] media: msi2500: fix memory leak in msi2500_probe error path	1 (1)	2026/05/15 07:25
[PATCH] media: msi2500: fix memory leak in msi2500_probe error path	2 (2)	2026/05/14 16:33
[syzbot] [media?] [usb?] memory leak in v4l2_ctrl_handler_init_class (3)	0 (3)	2026/05/08 03:01

Title

Replies (including bot)

Last reply

[PATCH] media: msi2500: free controls when video registration fails

1 (1)

2026/06/28 01:00

[syzbot] Monthly media report (Jun 2026)

0 (1)

2026/06/03 04:32

[PATCH v2] media: msi2500: fix memory leak in msi2500_probe error path

1 (1)

2026/05/15 07:25

[PATCH] media: msi2500: fix memory leak in msi2500_probe error path

2 (2)

2026/05/14 16:33

[syzbot] [media?] [usb?] memory leak in v4l2_ctrl_handler_init_class (3)

0 (3)

2026/05/08 03:01

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	memory leak in v4l2_ctrl_handler_init_class usb media	3	syz, C			12	1933d	1985d	20/29	fixed on 2021/11/10 00:50
upstream	memory leak in v4l2_ctrl_handler_init_class (2) usb media	3	syz, C			14	187d	251d	29/29	fixed on 2026/05/06 16:40

Rank 🛈

upstream

memory leak in v4l2_ctrl_handler_init_class usb media

syz, C

1933d

1985d

20/29

fixed on 2021/11/10 00:50

upstream

memory leak in v4l2_ctrl_handler_init_class (2) usb media

syz, C

187d

251d

29/29

fixed on 2026/05/06 16:40

Created	Duration	User	Patch	Repo	Result
2026/08/02 08:33	25m	retest repro		upstream	report log
2026/08/02 08:33	27m	retest repro		upstream	report log
2026/08/02 08:33	20m	retest repro		upstream	report log
2026/08/02 08:33	26m	retest repro		upstream	report log
2026/08/02 08:33	20m	retest repro		upstream	report log
2026/07/14 06:06	22m	retest repro		upstream	report log
2026/07/14 06:06	22m	retest repro		upstream	report log
2026/07/14 06:06	27m	retest repro		upstream	report log
2026/07/14 06:06	36m	retest repro		upstream	report log
2026/07/14 06:06	22m	retest repro		upstream	report log
2026/05/08 03:01	36m	daiky0325@gmail.com	patch	upstream	OK log
2026/05/08 02:56	21m	daiky0325@gmail.com		upstream	report log

Created

Duration

User

Patch

Repo

Result

2026/08/02 08:33

25m

retest repro

upstream

report log

2026/08/02 08:33

27m

retest repro

upstream

report log

2026/08/02 08:33

20m

retest repro

upstream

report log

2026/08/02 08:33

26m

retest repro

upstream

report log

2026/08/02 08:33

20m

retest repro

upstream

report log

2026/07/14 06:06

22m

retest repro

upstream

report log

2026/07/14 06:06

22m

retest repro

upstream

report log

2026/07/14 06:06

27m

retest repro

upstream

report log

2026/07/14 06:06

36m

retest repro

upstream

report log

2026/07/14 06:06

22m

retest repro

upstream

report log

2026/05/08 03:01

36m

daiky0325@gmail.com

patch

upstream

OK log

2026/05/08 02:56

21m

daiky0325@gmail.com

upstream

report log

BUG: memory leak unreferenced object 0xffff888125099298 (size 8): comm "kworker/1:0", pid 23, jiffies 4294944215 hex dump (first 8 bytes): 40 c6 7c 11 81 88 ff ff @.|..... backtrace (crc a3d5924d): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4625 [inline] slab_alloc_node mm/slub.c:4945 [inline] __do_kmalloc_node mm/slub.c:5361 [inline] __kvmalloc_node_noprof+0x58a/0x6f0 mm/slub.c:6933 v4l2_ctrl_handler_init_class+0x59/0x90 drivers/media/v4l2-core/v4l2-ctrls-core.c:1741 msi2500_probe+0x2f7/0x3a0 drivers/media/usb/msi2500/msi2500.c:1263 usb_probe_interface+0x210/0x480 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:628 [inline] really_probe+0x12f/0x3a0 drivers/base/dd.c:706 __driver_probe_device+0xe9/0x1a0 drivers/base/dd.c:868 driver_probe_device+0x28/0xf0 drivers/base/dd.c:898 __device_attach_driver+0x10f/0x170 drivers/base/dd.c:1026 bus_for_each_drv+0xd2/0x130 drivers/base/bus.c:500 __device_attach+0xf9/0x290 drivers/base/dd.c:1098 device_initial_probe+0x6f/0x80 drivers/base/dd.c:1153 bus_probe_device+0x3e/0xb0 drivers/base/bus.c:620 device_add+0x99f/0xc80 drivers/base/core.c:3772 usb_set_configuration+0x8f5/0xb80 drivers/usb/core/message.c:2268 usb_generic_driver_probe+0x73/0xb0 drivers/usb/core/generic.c:250 usb_probe_device+0x78/0x1f0 drivers/usb/core/driver.c:291 BUG: memory leak unreferenced object 0xffff888127db2400 (size 256): comm "kworker/1:0", pid 23, jiffies 4294944215 hex dump (first 32 bytes): 58 e7 ba 18 81 88 ff ff 58 e7 ba 18 81 88 ff ff X.......X....... 10 24 db 27 81 88 ff ff 10 24 db 27 81 88 ff ff .$.'.....$.'.... backtrace (crc 44c10928): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4625 [inline] slab_alloc_node mm/slub.c:4945 [inline] __do_kmalloc_node mm/slub.c:5361 [inline] __kvmalloc_node_noprof+0x58a/0x6f0 mm/slub.c:6933 v4l2_ctrl_new+0x2bb/0x1470 drivers/media/v4l2-core/v4l2-ctrls-core.c:2152 v4l2_ctrl_new_std+0x122/0x180 drivers/media/v4l2-core/v4l2-ctrls-core.c:2306 handler_new_ref+0x34d/0x440 drivers/media/v4l2-core/v4l2-ctrls-core.c:1887 v4l2_ctrl_add_handler drivers/media/v4l2-core/v4l2-ctrls-core.c:2456 [inline] v4l2_ctrl_add_handler+0x12d/0x180 drivers/media/v4l2-core/v4l2-ctrls-core.c:2430 msi2500_probe+0x32e/0x3a0 drivers/media/usb/msi2500/msi2500.c:1271 usb_probe_interface+0x210/0x480 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:628 [inline] really_probe+0x12f/0x3a0 drivers/base/dd.c:706 __driver_probe_device+0xe9/0x1a0 drivers/base/dd.c:868 driver_probe_device+0x28/0xf0 drivers/base/dd.c:898 __device_attach_driver+0x10f/0x170 drivers/base/dd.c:1026 bus_for_each_drv+0xd2/0x130 drivers/base/bus.c:500 __device_attach+0xf9/0x290 drivers/base/dd.c:1098 device_initial_probe+0x6f/0x80 drivers/base/dd.c:1153 bus_probe_device+0x3e/0xb0 drivers/base/bus.c:620 device_add+0x99f/0xc80 drivers/base/core.c:3772 BUG: memory leak unreferenced object 0xffff8881251989c0 (size 64): comm "kworker/1:0", pid 23, jiffies 4294944215 hex dump (first 32 bytes): c0 c8 7c 11 81 88 ff ff 68 e7 ba 18 81 88 ff ff ..|.....h....... 00 00 00 00 00 00 00 00 00 24 db 27 81 88 ff ff .........$.'.... backtrace (crc 2d6f08e3): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4625 [inline] slab_alloc_node mm/slub.c:4945 [inline] __do_kmalloc_node mm/slub.c:5361 [inline] __kmalloc_noprof+0x3bf/0x550 mm/slub.c:5387 _kmalloc_noprof include/linux/slab.h:973 [inline] _kzalloc_noprof include/linux/slab.h:1290 [inline] handler_new_ref+0xd9/0x440 drivers/media/v4l2-core/v4l2-ctrls-core.c:1895 v4l2_ctrl_new+0x69e/0x1470 drivers/media/v4l2-core/v4l2-ctrls-core.c:2235 v4l2_ctrl_new_std+0x122/0x180 drivers/media/v4l2-core/v4l2-ctrls-core.c:2306 handler_new_ref+0x34d/0x440 drivers/media/v4l2-core/v4l2-ctrls-core.c:1887 v4l2_ctrl_add_handler drivers/media/v4l2-core/v4l2-ctrls-core.c:2456 [inline] v4l2_ctrl_add_handler+0x12d/0x180 drivers/media/v4l2-core/v4l2-ctrls-core.c:2430 msi2500_probe+0x32e/0x3a0 drivers/media/usb/msi2500/msi2500.c:1271 usb_probe_interface+0x210/0x480 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:628 [inline] really_probe+0x12f/0x3a0 drivers/base/dd.c:706 __driver_probe_device+0xe9/0x1a0 drivers/base/dd.c:868 driver_probe_device+0x28/0xf0 drivers/base/dd.c:898 __device_attach_driver+0x10f/0x170 drivers/base/dd.c:1026 bus_for_each_drv+0xd2/0x130 drivers/base/bus.c:500 __device_attach+0xf9/0x290 drivers/base/dd.c:1098 device_initial_probe+0x6f/0x80 drivers/base/dd.c:1153 bus_probe_device+0x3e/0xb0 drivers/base/bus.c:620 BUG: memory leak unreferenced object 0xffff8881117cc8c0 (size 64): comm "kworker/1:0", pid 23, jiffies 4294944215 hex dump (first 32 bytes): 80 0a 5e 11 81 88 ff ff c0 89 19 25 81 88 ff ff ..^........%.... c0 89 19 25 81 88 ff ff 00 29 db 27 81 88 ff ff ...%.....).'.... backtrace (crc 6a9d33d0): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4625 [inline] slab_alloc_node mm/slub.c:4945 [inline] __do_kmalloc_node mm/slub.c:5361 [inline] __kmalloc_noprof+0x3bf/0x550 mm/slub.c:5387 _kmalloc_noprof include/linux/slab.h:973 [inline] _kzalloc_noprof include/linux/slab.h:1290 [inline] handler_new_ref+0xd9/0x440 drivers/media/v4l2-core/v4l2-ctrls-core.c:1895 v4l2_ctrl_add_handler drivers/media/v4l2-core/v4l2-ctrls-core.c:2456 [inline] v4l2_ctrl_add_handler+0x12d/0x180 drivers/media/v4l2-core/v4l2-ctrls-core.c:2430 msi2500_probe+0x32e/0x3a0 drivers/media/usb/msi2500/msi2500.c:1271 usb_probe_interface+0x210/0x480 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:628 [inline] really_probe+0x12f/0x3a0 drivers/base/dd.c:706 __driver_probe_device+0xe9/0x1a0 drivers/base/dd.c:868 driver_probe_device+0x28/0xf0 drivers/base/dd.c:898 __device_attach_driver+0x10f/0x170 drivers/base/dd.c:1026 bus_for_each_drv+0xd2/0x130 drivers/base/bus.c:500 __device_attach+0xf9/0x290 drivers/base/dd.c:1098 device_initial_probe+0x6f/0x80 drivers/base/dd.c:1153 bus_probe_device+0x3e/0xb0 drivers/base/bus.c:620 device_add+0x99f/0xc80 drivers/base/core.c:3772 usb_set_configuration+0x8f5/0xb80 drivers/usb/core/message.c:2268 usb_generic_driver_probe+0x73/0xb0 drivers/usb/core/generic.c:250 connection error: failed to recv *flatrpc.ExecutorMessageRawT: EOF

Crashes (20):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	Assets (help?)	Manager	Title
2026/07/18 15:09	upstream	af5e34a41cd6	72524a66	.config	console log	report	syz / log	C	[disk image] [vmlinux] [kernel image]	ci-upstream-gce-leak	memory leak in v4l2_ctrl_handler_init_class
2026/07/17 03:34	upstream	37e2f878a7a6	8f30cfd7	.config	console log	report	syz / log	C	[disk image] [vmlinux] [kernel image]	ci-upstream-gce-leak	memory leak in v4l2_ctrl_handler_init_class
2026/07/17 03:30	upstream	37e2f878a7a6	8f30cfd7	.config	console log	report	syz / log	C	[disk image] [vmlinux] [kernel image]	ci-upstream-gce-leak	memory leak in v4l2_ctrl_handler_init_class
2026/07/17 02:49	upstream	37e2f878a7a6	8f30cfd7	.config	console log	report	syz / log	C	[disk image] [vmlinux] [kernel image]	ci-upstream-gce-leak	memory leak in v4l2_ctrl_handler_init_class
2026/07/17 02:19	upstream	37e2f878a7a6	8f30cfd7	.config	console log	report	syz / log	C	[disk image] [vmlinux] [kernel image]	ci-upstream-gce-leak	memory leak in v4l2_ctrl_handler_init_class
2026/07/17 02:05	upstream	37e2f878a7a6	8f30cfd7	.config	console log	report	syz / log	C	[disk image] [vmlinux] [kernel image]	ci-upstream-gce-leak	memory leak in v4l2_ctrl_handler_init_class
2026/07/17 01:33	upstream	37e2f878a7a6	8f30cfd7	.config	console log	report	syz / log	C	[disk image] [vmlinux] [kernel image]	ci-upstream-gce-leak	memory leak in v4l2_ctrl_handler_init_class
2026/06/29 23:59	upstream	dc59e4fea9d8	6a0c72dc	.config	console log	report	syz / log	C	[disk image] [vmlinux] [kernel image]	ci-upstream-gce-leak	memory leak in v4l2_ctrl_handler_init_class
2026/06/29 23:08	upstream	dc59e4fea9d8	6a0c72dc	.config	console log	report	syz / log	C	[disk image] [vmlinux] [kernel image]	ci-upstream-gce-leak	memory leak in v4l2_ctrl_handler_init_class
2026/06/29 22:39	upstream	dc59e4fea9d8	6a0c72dc	.config	console log	report	syz / log	C	[disk image] [vmlinux] [kernel image]	ci-upstream-gce-leak	memory leak in v4l2_ctrl_handler_init_class
2026/06/29 22:22	upstream	dc59e4fea9d8	6a0c72dc	.config	console log	report	syz / log	C	[disk image] [vmlinux] [kernel image]	ci-upstream-gce-leak	memory leak in v4l2_ctrl_handler_init_class
2026/06/29 21:55	upstream	dc59e4fea9d8	6a0c72dc	.config	console log	report	syz / log	C	[disk image] [vmlinux] [kernel image]	ci-upstream-gce-leak	memory leak in v4l2_ctrl_handler_init_class
2026/05/16 20:17	upstream	6916d5703ddf	a15a64a6	.config	console log	report	syz / log	C	[disk image] [vmlinux] [kernel image]	ci-upstream-gce-leak	memory leak in v4l2_ctrl_handler_init_class
2026/05/16 19:54	upstream	6916d5703ddf	a15a64a6	.config	console log	report	syz / log	C	[disk image] [vmlinux] [kernel image]	ci-upstream-gce-leak	memory leak in v4l2_ctrl_handler_init_class
2026/05/16 19:52	upstream	6916d5703ddf	a15a64a6	.config	console log	report	syz / log	C	[disk image] [vmlinux] [kernel image]	ci-upstream-gce-leak	memory leak in v4l2_ctrl_handler_init_class
2026/05/07 16:29	upstream	5862221fdded	f250db59	.config	console log	report	syz / log	C	[disk image] [vmlinux] [kernel image]	ci-upstream-gce-leak	memory leak in v4l2_ctrl_handler_init_class
2026/05/07 16:06	upstream	5862221fdded	f250db59	.config	console log	report	syz / log	C	[disk image] [vmlinux] [kernel image]	ci-upstream-gce-leak	memory leak in v4l2_ctrl_handler_init_class
2026/05/07 15:43	upstream	5862221fdded	f250db59	.config	console log	report	syz / log	C	[disk image] [vmlinux] [kernel image]	ci-upstream-gce-leak	memory leak in v4l2_ctrl_handler_init_class
2026/05/07 15:37	upstream	5862221fdded	f250db59	.config	console log	report	syz / log	C	[disk image] [vmlinux] [kernel image]	ci-upstream-gce-leak	memory leak in v4l2_ctrl_handler_init_class
2026/05/07 15:33	upstream	5862221fdded	f250db59	.config	console log	report	syz / log	C	[disk image] [vmlinux] [kernel image]	ci-upstream-gce-leak	memory leak in v4l2_ctrl_handler_init_class

Crashes (20):

Assets (help?)