memory leak in f_uac2_opts_c_srate

Version	Stage	Reported	Report Link	Job
1	moderation	2026/07/31 08:41	Discussion	cd9711f3-2259-4827-9de9-96cca016901b

moderation

2026/07/31 08:41

ID	Workflow	Result	Correct	Bug	Created	Started	Finished	Revision	Error
cd9711f3	patching		❓	memory leak in f_uac2_opts_c_srate_store	2026/07/31 06:20	2026/07/31 06:20	2026/07/31 08:41	aaffb173
db5519ef	assessment-security	DenialOfService: ✅ Exploitable: ❌ FilesystemTrigger: ❌ NetworkTrigger: ❌ PeripheralTrigger: ❌ RemoteTrigger: ❌ Unprivileged: ❌ UserNamespace: ❌ VMGuestTrigger: ❌ VMHostTrigger: ❌	❓	memory leak in f_uac2_opts_c_srate_store	2026/07/26 16:23	2026/07/26 16:23	2026/07/26 16:48	492bab15

Title	Replies (including bot)	Last reply
[PATCH] usb: gadget: f_uac2: fix memory leak in sample rate store	1 (1)	2026/08/02 03:29
[PATCH] usb: gadget: f_uac2: fix memory leak in sample rate store	1 (1)	2026/08/02 00:58
[syzbot] [usb?] memory leak in f_uac2_opts_c_srate_store	0 (2)	2026/08/02 00:04

Title

Replies (including bot)

Last reply

[PATCH] usb: gadget: f_uac2: fix memory leak in sample rate store

1 (1)

2026/08/02 03:29

[PATCH] usb: gadget: f_uac2: fix memory leak in sample rate store

1 (1)

2026/08/02 00:58

[syzbot] [usb?] memory leak in f_uac2_opts_c_srate_store

0 (2)

2026/08/02 00:04

Created	Duration	User	Patch	Repo	Result
2026/08/02 00:04	28m	rwarwatkar@gmail.com	patch	upstream	OK log

Created

Duration

User

Patch

Repo

Result

2026/08/02 00:04

28m

rwarwatkar@gmail.com

patch

upstream

OK log

2026/07/26 16:23:20 executed programs: 5 BUG: memory leak unreferenced object 0xffff888112a01e00 (size 64): comm "syz.0.17", pid 5945, jiffies 4294942115 hex dump (first 32 bytes): 34 34 31 30 30 00 34 38 30 30 30 00 38 38 32 30 44100.48000.8820 30 00 39 36 30 30 30 00 31 37 36 34 30 30 00 31 0.96000.176400.1 backtrace (crc 9bbd8bc9): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4597 [inline] slab_alloc_node mm/slub.c:4917 [inline] __do_kmalloc_node mm/slub.c:5333 [inline] __kmalloc_node_track_caller_noprof+0x3d3/0x570 mm/slub.c:5471 __kmemdup_nul mm/util.c:64 [inline] kstrdup+0x3c/0x80 mm/util.c:84 f_uac2_opts_c_srate_store+0xbb/0x170 drivers/usb/gadget/function/f_uac2.c:2091 flush_write_buffer fs/configfs/file.c:207 [inline] configfs_write_iter+0x10d/0x1a0 fs/configfs/file.c:229 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x3ac/0x720 fs/read_write.c:687 ksys_write+0xa5/0x170 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf8/0x610 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f BUG: memory leak unreferenced object 0xffff8881128d2d80 (size 64): comm "syz.0.18", pid 5946, jiffies 4294942116 hex dump (first 32 bytes): 34 34 31 30 30 00 34 38 30 30 30 00 38 38 32 30 44100.48000.8820 30 00 39 36 30 30 30 00 31 37 36 34 30 30 00 31 0.96000.176400.1 backtrace (crc 9bbd8bc9): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4597 [inline] slab_alloc_node mm/slub.c:4917 [inline] __do_kmalloc_node mm/slub.c:5333 [inline] __kmalloc_node_track_caller_noprof+0x3d3/0x570 mm/slub.c:5471 __kmemdup_nul mm/util.c:64 [inline] kstrdup+0x3c/0x80 mm/util.c:84 f_uac2_opts_c_srate_store+0xbb/0x170 drivers/usb/gadget/function/f_uac2.c:2091 flush_write_buffer fs/configfs/file.c:207 [inline] configfs_write_iter+0x10d/0x1a0 fs/configfs/file.c:229 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x3ac/0x720 fs/read_write.c:687 ksys_write+0xa5/0x170 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf8/0x610 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f BUG: memory leak unreferenced object 0xffff88811193ee80 (size 64): comm "syz.0.21", pid 5964, jiffies 4294942644 hex dump (first 32 bytes): 34 34 31 30 30 00 34 38 30 30 30 00 38 38 32 30 44100.48000.8820 30 00 39 36 30 30 30 00 31 37 36 34 30 30 00 31 0.96000.176400.1 backtrace (crc 9bbd8bc9): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4597 [inline] slab_alloc_node mm/slub.c:4917 [inline] __do_kmalloc_node mm/slub.c:5333 [inline] __kmalloc_node_track_caller_noprof+0x3d3/0x570 mm/slub.c:5471 __kmemdup_nul mm/util.c:64 [inline] kstrdup+0x3c/0x80 mm/util.c:84 f_uac2_opts_c_srate_store+0xbb/0x170 drivers/usb/gadget/function/f_uac2.c:2091 flush_write_buffer fs/configfs/file.c:207 [inline] configfs_write_iter+0x10d/0x1a0 fs/configfs/file.c:229 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x3ac/0x720 fs/read_write.c:687 ksys_write+0xa5/0x170 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf8/0x610 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f connection error: failed to recv *flatrpc.ExecutorMessageRawT: EOF

Crashes (1):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2026/07/26 16:23	upstream	3dab139d4795	492bab15	.config	console log	report	syz / log	C		[disk image] [vmlinux] [kernel image]	ci-upstream-gce-leak	memory leak in f_uac2_opts_c_srate_store

Crashes (1):

Assets (help?)