memory leak in v4l2_ctrl_handler_init

ID	Workflow	Result	Correct	Bug	Created	Started	Finished	Revision	Error
a6b749b2-e2b5-49f8-b6f4-4249b76fb5c6	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	9cd3beaadf14b3a22d15fd97a0bf081ee41ebe01	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: 14% (13489/93692) Updating files: 15% (14054/93692) Updating files: 16% (14991/93692) Updating files: 17% (15928/93692) Updating files: 18% (16865/93692) Updating files: 19% (17802/93692) Updating files: 20% (18739/93692) Updating files: 21% (19676/93692) Updating files: 22% (20613/93692) Updating files: 23% (21550/93692) error: unable to write file arch/mips/include/asm/octeon/cvmx-pip-defs.h error: unable to write file arch/mips/include/asm/octeon/cvmx-pip.h error: unable to write file arch/mips/include/asm/octeon/cvmx-pko-defs.h error: unable to write file arch/mips/include/asm/octeon/cvmx-pko.h error: unable to write file arch/mips/include/asm/octeon/cvmx-pow-defs.h error: unable to write file arch/mips/include/asm/octeon/cvmx-pow.h error: unable to write file arch/mips/include/asm/octeon/cvmx-rnm-defs.h error: unable to write file arch/mips/include/asm/octeon/cvmx-rst-defs.h error: unable to write file arch/mips/include/asm/octeon/cvmx-scratch.h error: unable to write file arch/mips/include/asm/octeon/cvmx-sli-defs.h error: unable to write file arch/mips/include/asm/octeon/cvmx-spi.h error: unable to write file arch/mips/include/asm/octeon/cvmx-spinlock.h error: unable to write file arch/mips/include/asm/octeon/cvmx-spxx-defs.h error: unable to write file arch/mips/include/asm/octeon/cvmx-sriox-defs.h error: unable to write file arch/mips/include/asm/octeon/cvmx-srxx-defs.h error: unable to write file arch/mips/include/asm/octeon/cvmx-stxx-defs.h error: unable to write file arch/mips/include/asm/octeon/cvmx-sysinfo.h error: unable to write file arch/mips/include/asm/octeon/cvmx-uctlx-defs.h error: unable to write file arch/mips/include/asm/octeon/cvmx-wqe.h error: unable to write file arch/mips/include/asm/octeon/cvmx.h error: unable to write file arch/mips/include/asm/octeon/octeon-feature.h error: unable to write file arch/mips/include/asm/octeon/octeon-model.h error: unable to write file arch/mips/include/asm/octeon/octeon.h error: unable to write file arch/mips/include/asm/octeon/pci-octeon.h error: unable to write file arch/mips/include/asm/paccess.h error: unable to write file arch/mips/include/asm/page.h error: unable to write file arch/mips/include/asm/pci.h fatal: cannot create directory at 'arch/mips/include/asm/pci': No space left on device

Title	Replies (including bot)	Last reply
[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 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	C			12	1853d	1906d	20/29	fixed on 2021/11/10 00:50
upstream	memory leak in v4l2_ctrl_handler_init_class (2) usb media	3	C			14	108d	172d	29/29	fixed on 2026/05/06 16:40

Rank 🛈

upstream

memory leak in v4l2_ctrl_handler_init_class usb media

1853d

1906d

20/29

fixed on 2021/11/10 00:50

upstream

memory leak in v4l2_ctrl_handler_init_class (2) usb media

108d

172d

29/29

fixed on 2026/05/06 16:40

Created	Duration	User	Patch	Repo	Result
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

2026/05/08 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 0xffff88810e1e0500 (size 8): comm "kworker/1:2", pid 1194, jiffies 4294947608 hex dump (first 8 bytes): 80 88 00 12 81 88 ff ff ........ backtrace (crc f6076c34): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4574 [inline] slab_alloc_node mm/slub.c:4898 [inline] __do_kmalloc_node mm/slub.c:5294 [inline] __kvmalloc_node_noprof+0x537/0x760 mm/slub.c:6832 v4l2_ctrl_handler_init_class+0x59/0x90 drivers/media/v4l2-core/v4l2-ctrls-core.c:1728 msi2500_probe+0x2a9/0x390 drivers/media/usb/msi2500/msi2500.c:1248 usb_probe_interface+0x22a/0x4e0 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:631 [inline] really_probe+0x12f/0x3a0 drivers/base/dd.c:709 __driver_probe_device+0xe8/0x1a0 drivers/base/dd.c:871 driver_probe_device+0x2a/0x120 drivers/base/dd.c:901 __device_attach_driver+0x10f/0x170 drivers/base/dd.c:1029 bus_for_each_drv+0xd2/0x130 drivers/base/bus.c:500 __device_attach+0xf9/0x290 drivers/base/dd.c:1101 device_initial_probe+0x6f/0x80 drivers/base/dd.c:1156 bus_probe_device+0x3e/0xb0 drivers/base/bus.c:613 device_add+0x99b/0xc70 drivers/base/core.c:3706 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 0xffff88811b61ba80 (size 8): comm "kworker/0:2", pid 808, jiffies 4294947733 hex dump (first 8 bytes): 00 fa b7 2a 81 88 ff ff ...*.... backtrace (crc 4855f866): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4574 [inline] slab_alloc_node mm/slub.c:4898 [inline] __do_kmalloc_node mm/slub.c:5294 [inline] __kvmalloc_node_noprof+0x537/0x760 mm/slub.c:6832 v4l2_ctrl_handler_init_class+0x59/0x90 drivers/media/v4l2-core/v4l2-ctrls-core.c:1728 msi2500_probe+0x2a9/0x390 drivers/media/usb/msi2500/msi2500.c:1248 usb_probe_interface+0x22a/0x4e0 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:631 [inline] really_probe+0x12f/0x3a0 drivers/base/dd.c:709 __driver_probe_device+0xe8/0x1a0 drivers/base/dd.c:871 driver_probe_device+0x2a/0x120 drivers/base/dd.c:901 __device_attach_driver+0x10f/0x170 drivers/base/dd.c:1029 bus_for_each_drv+0xd2/0x130 drivers/base/bus.c:500 __device_attach+0xf9/0x290 drivers/base/dd.c:1101 device_initial_probe+0x6f/0x80 drivers/base/dd.c:1156 bus_probe_device+0x3e/0xb0 drivers/base/bus.c:613 device_add+0x99b/0xc70 drivers/base/core.c:3706 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 0xffff88810e1e04a0 (size 8): comm "kworker/1:2", pid 1194, jiffies 4294947856 hex dump (first 8 bytes): 80 57 76 11 81 88 ff ff .Wv..... backtrace (crc 31578b94): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4574 [inline] slab_alloc_node mm/slub.c:4898 [inline] __do_kmalloc_node mm/slub.c:5294 [inline] __kvmalloc_node_noprof+0x537/0x760 mm/slub.c:6832 v4l2_ctrl_handler_init_class+0x59/0x90 drivers/media/v4l2-core/v4l2-ctrls-core.c:1728 msi2500_probe+0x2a9/0x390 drivers/media/usb/msi2500/msi2500.c:1248 usb_probe_interface+0x22a/0x4e0 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:631 [inline] really_probe+0x12f/0x3a0 drivers/base/dd.c:709 __driver_probe_device+0xe8/0x1a0 drivers/base/dd.c:871 driver_probe_device+0x2a/0x120 drivers/base/dd.c:901 __device_attach_driver+0x10f/0x170 drivers/base/dd.c:1029 bus_for_each_drv+0xd2/0x130 drivers/base/bus.c:500 __device_attach+0xf9/0x290 drivers/base/dd.c:1101 device_initial_probe+0x6f/0x80 drivers/base/dd.c:1156 bus_probe_device+0x3e/0xb0 drivers/base/bus.c:613 device_add+0x99b/0xc70 drivers/base/core.c:3706 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 0xffff888113215100 (size 256): comm "kworker/1:2", pid 1194, jiffies 4294947856 hex dump (first 32 bytes): 58 67 6b 11 81 88 ff ff 58 67 6b 11 81 88 ff ff Xgk.....Xgk..... 10 51 21 13 81 88 ff ff 10 51 21 13 81 88 ff ff .Q!......Q!..... backtrace (crc 8cddbc6b): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4574 [inline] slab_alloc_node mm/slub.c:4898 [inline] __do_kmalloc_node mm/slub.c:5294 [inline] __kvmalloc_node_noprof+0x537/0x760 mm/slub.c:6832 v4l2_ctrl_new+0x2bb/0x1470 drivers/media/v4l2-core/v4l2-ctrls-core.c:2139 v4l2_ctrl_new_std+0x122/0x180 drivers/media/v4l2-core/v4l2-ctrls-core.c:2293 handler_new_ref+0x34d/0x440 drivers/media/v4l2-core/v4l2-ctrls-core.c:1874 v4l2_ctrl_add_handler drivers/media/v4l2-core/v4l2-ctrls-core.c:2443 [inline] v4l2_ctrl_add_handler+0x12d/0x180 drivers/media/v4l2-core/v4l2-ctrls-core.c:2417 msi2500_probe+0x2e0/0x390 drivers/media/usb/msi2500/msi2500.c:1256 usb_probe_interface+0x22a/0x4e0 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:631 [inline] really_probe+0x12f/0x3a0 drivers/base/dd.c:709 __driver_probe_device+0xe8/0x1a0 drivers/base/dd.c:871 driver_probe_device+0x2a/0x120 drivers/base/dd.c:901 __device_attach_driver+0x10f/0x170 drivers/base/dd.c:1029 bus_for_each_drv+0xd2/0x130 drivers/base/bus.c:500 __device_attach+0xf9/0x290 drivers/base/dd.c:1101 device_initial_probe+0x6f/0x80 drivers/base/dd.c:1156 bus_probe_device+0x3e/0xb0 drivers/base/bus.c:613 device_add+0x99b/0xc70 drivers/base/core.c:3706 BUG: memory leak unreferenced object 0xffff888112008500 (size 64): comm "kworker/1:2", pid 1194, jiffies 4294947856 hex dump (first 32 bytes): 00 86 00 12 81 88 ff ff 68 67 6b 11 81 88 ff ff ........hgk..... 00 00 00 00 00 00 00 00 00 51 21 13 81 88 ff ff .........Q!..... backtrace (crc f931e34b): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4574 [inline] slab_alloc_node mm/slub.c:4898 [inline] __do_kmalloc_node mm/slub.c:5294 [inline] __kmalloc_noprof+0x3b7/0x550 mm/slub.c:5307 kmalloc_noprof include/linux/slab.h:954 [inline] kzalloc_noprof include/linux/slab.h:1188 [inline] handler_new_ref+0xd9/0x440 drivers/media/v4l2-core/v4l2-ctrls-core.c:1882 v4l2_ctrl_new+0x69e/0x1470 drivers/media/v4l2-core/v4l2-ctrls-core.c:2222 v4l2_ctrl_new_std+0x122/0x180 drivers/media/v4l2-core/v4l2-ctrls-core.c:2293 handler_new_ref+0x34d/0x440 drivers/media/v4l2-core/v4l2-ctrls-core.c:1874 v4l2_ctrl_add_handler drivers/media/v4l2-core/v4l2-ctrls-core.c:2443 [inline] v4l2_ctrl_add_handler+0x12d/0x180 drivers/media/v4l2-core/v4l2-ctrls-core.c:2417 msi2500_probe+0x2e0/0x390 drivers/media/usb/msi2500/msi2500.c:1256 usb_probe_interface+0x22a/0x4e0 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:631 [inline] really_probe+0x12f/0x3a0 drivers/base/dd.c:709 __driver_probe_device+0xe8/0x1a0 drivers/base/dd.c:871 driver_probe_device+0x2a/0x120 drivers/base/dd.c:901 __device_attach_driver+0x10f/0x170 drivers/base/dd.c:1029 bus_for_each_drv+0xd2/0x130 drivers/base/bus.c:500 __device_attach+0xf9/0x290 drivers/base/dd.c:1101 device_initial_probe+0x6f/0x80 drivers/base/dd.c:1156 bus_probe_device+0x3e/0xb0 drivers/base/bus.c:613 connection error: failed to recv *flatrpc.ExecutorMessageRawT: EOF

Crashes (8):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	Assets (help?)	Manager	Title
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 (8):

Assets (help?)