WARNING in gid_table_release

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[syzbot] [rdma?] WARNING in gid_table_release_one (4)	0 (1)	2026/03/07 12:38

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[syzbot] [rdma?] WARNING in gid_table_release_one (4)

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2026/03/07 12:38

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-5.15	WARNING in gid_table_release_one origin:upstream	-1	syz			47	57d	302d	0/3	upstream: reported syz repro on 2025/05/12 20:58
upstream	WARNING in gid_table_release_one (3) rdma	-1	C	done		455	67d	302d	29/29	fixed on 2026/01/26 05:07
linux-6.1	WARNING in gid_table_release_one	-1				1	571d	571d	0/3	auto-obsoleted due to no activity on 2024/11/25 05:33
upstream	WARNING in gid_table_release_one (2) rdma	-1				1	559d	555d	28/29	fixed on 2024/10/24 03:35
upstream	WARNING in gid_table_release_one rdma	-1				12	621d	629d	0/29	auto-obsoleted due to no activity on 2024/08/06 20:20
linux-6.1	WARNING in gid_table_release_one (3) origin:upstream	-1	syz		error	15	70d	130d	0/3	upstream: reported syz repro on 2025/10/31 21:06
linux-6.6	WARNING in gid_table_release_one origin:upstream	-1	syz		error	43	62d	263d	0/2	upstream: reported syz repro on 2025/06/21 11:54
linux-6.1	WARNING in gid_table_release_one (2)	-1				3	285d	305d	0/3	auto-obsoleted due to no activity on 2025/09/06 20:49

infiniband syz1: set active infiniband syz1: added syz_tun RDS/IB: syz1: added smc: adding ib device syz1 with port count 1 smc: ib device syz1 port 1 has no pnetid smc: removing ib device syz1 ------------[ cut here ]------------ GID entry ref leak for dev syz1 index 2 ref=1 WARNING: drivers/infiniband/core/cache.c:808 at release_gid_table drivers/infiniband/core/cache.c:805 [inline], CPU#0: syz.0.0/5321 WARNING: drivers/infiniband/core/cache.c:808 at gid_table_release_one+0x1fa/0x440 drivers/infiniband/core/cache.c:885, CPU#0: syz.0.0/5321 Modules linked in: CPU: 0 UID: 0 PID: 5321 Comm: syz.0.0 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 RIP: 0010:release_gid_table drivers/infiniband/core/cache.c:805 [inline] RIP: 0010:gid_table_release_one+0x2aa/0x440 drivers/infiniband/core/cache.c:885 Code: 00 48 89 ef be 04 00 00 00 e8 f2 0e 92 f9 48 89 e8 48 c1 e8 03 42 0f b6 04 28 84 c0 75 54 8b 4d 00 48 89 df 4c 89 fe 44 89 e2 <67> 48 0f b9 3a 4d 89 ef 4c 8b 6c 24 68 48 8b 44 24 70 42 0f b6 04 RSP: 0018:ffffc9000ec06fd0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffffffff901fbac0 RCX: 0000000000000001 RDX: 0000000000000002 RSI: ffff88801f36c160 RDI: ffffffff901fbac0 RBP: ffff888034720900 R08: ffff888034720903 R09: 1ffff110068e4120 R10: dffffc0000000000 R11: ffffed10068e4121 R12: 0000000000000002 R13: dffffc0000000000 R14: ffff8880443a5ed8 R15: ffff88801f36c160 FS: 00007f2c6167e6c0(0000) GS:ffff88808ca59000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005558b587a000 CR3: 00000000420e0000 CR4: 0000000000352ef0 Call Trace: <TASK> ib_device_release+0xd2/0x1c0 drivers/infiniband/core/device.c:482 device_release+0x9e/0x1d0 drivers/base/core.c:-1 kobject_cleanup lib/kobject.c:689 [inline] kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x228/0x560 lib/kobject.c:737 nldev_dellink+0x288/0x320 drivers/infiniband/core/nldev.c:1827 rdma_nl_rcv_msg drivers/infiniband/core/netlink.c:-1 [inline] rdma_nl_rcv_skb drivers/infiniband/core/netlink.c:239 [inline] rdma_nl_rcv+0x6d7/0xa10 drivers/infiniband/core/netlink.c:259 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x80f/0x9b0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg net/socket.c:742 [inline] ____sys_sendmsg+0xa68/0xad0 net/socket.c:2592 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2646 __sys_sendmsg net/socket.c:2678 [inline] __do_sys_sendmsg net/socket.c:2683 [inline] __se_sys_sendmsg net/socket.c:2681 [inline] __x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2681 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f2c6079c799 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f2c6167dfe8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f2c60a15fa0 RCX: 00007f2c6079c799 RDX: 0000000000000000 RSI: 00002000000002c0 RDI: 0000000000000008 RBP: 00007f2c60832bd9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f2c60a16038 R14: 00007f2c60a15fa0 R15: 00007ffebd9d0d58 </TASK> ---------------- Code disassembly (best guess): 0: 00 48 89 add %cl,-0x77(%rax) 3: ef out %eax,(%dx) 4: be 04 00 00 00 mov $0x4,%esi 9: e8 f2 0e 92 f9 call 0xf9920f00 e: 48 89 e8 mov %rbp,%rax 11: 48 c1 e8 03 shr $0x3,%rax 15: 42 0f b6 04 28 movzbl (%rax,%r13,1),%eax 1a: 84 c0 test %al,%al 1c: 75 54 jne 0x72 1e: 8b 4d 00 mov 0x0(%rbp),%ecx 21: 48 89 df mov %rbx,%rdi 24: 4c 89 fe mov %r15,%rsi 27: 44 89 e2 mov %r12d,%edx * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: 4d 89 ef mov %r13,%r15 32: 4c 8b 6c 24 68 mov 0x68(%rsp),%r13 37: 48 8b 44 24 70 mov 0x70(%rsp),%rax 3c: 42 rex.X 3d: 0f .byte 0xf 3e: b6 04 mov $0x4,%dh

Crashes (1):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2026/03/03 12:32	upstream	af4e9ef3d784	28b83e23	.config	console log	report				[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	WARNING in gid_table_release_one

Crashes (1):

Assets (help?)