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Date: Wed, 12 Jun 2024 16:56:57 +0300
From: Ghadi Elie Rahme <ghadi.rahme@...onical.com>
To: netdev@...r.kernel.org
Cc: stable@...r.kernel.org,
Ghadi Elie Rahme <ghadi.rahme@...onical.com>
Subject: [PATCH net] bnx2x: Fix multiple UBSAN array-index-out-of-bounds
Fix UBSAN warnings that occur when using a system with 32 physical
cpu cores or more, or when the user defines a number of ethernet
queues greater than or equal to FP_SB_MAX_E1x.
The value of the maximum number of Ethernet queues should be limited
to FP_SB_MAX_E1x in case FCOE is disabled or to [FP_SB_MAX_E1x-1] if
enabled to avoid out of bounds reads and writes.
Stack trace:
UBSAN: array-index-out-of-bounds in /home/kernel/COD/linux/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c:1529:11
index 20 is out of range for type 'stats_query_entry [19]'
CPU: 12 PID: 858 Comm: systemd-network Not tainted 6.9.0-060900rc7-generic #202405052133
Hardware name: HP ProLiant DL360 Gen9/ProLiant DL360 Gen9, BIOS P89 10/21/2019
Call Trace:
<TASK>
dump_stack_lvl+0x76/0xa0
dump_stack+0x10/0x20
__ubsan_handle_out_of_bounds+0xcb/0x110
bnx2x_prep_fw_stats_req+0x2e1/0x310 [bnx2x]
bnx2x_stats_init+0x156/0x320 [bnx2x]
bnx2x_post_irq_nic_init+0x81/0x1a0 [bnx2x]
bnx2x_nic_load+0x8e8/0x19e0 [bnx2x]
bnx2x_open+0x16b/0x290 [bnx2x]
__dev_open+0x10e/0x1d0
__dev_change_flags+0x1bb/0x240
? sock_def_readable+0x52/0xf0
dev_change_flags+0x27/0x80
do_setlink+0xab7/0xe50
? rtnl_getlink+0x3c7/0x470
? __nla_validate_parse+0x49/0x1d0
rtnl_setlink+0x12f/0x1f0
? security_capable+0x47/0x80
rtnetlink_rcv_msg+0x170/0x440
? ep_done_scan+0xe4/0x100
? __pfx_rtnetlink_rcv_msg+0x10/0x10
netlink_rcv_skb+0x5d/0x110
rtnetlink_rcv+0x15/0x30
netlink_unicast+0x243/0x380
netlink_sendmsg+0x213/0x460
__sys_sendto+0x21e/0x230
__x64_sys_sendto+0x24/0x40
x64_sys_call+0x1c33/0x25c0
do_syscall_64+0x7e/0x180
? __task_pid_nr_ns+0x6c/0xc0
? syscall_exit_to_user_mode+0x81/0x270
? do_syscall_64+0x8b/0x180
? do_syscall_64+0x8b/0x180
? __task_pid_nr_ns+0x6c/0xc0
? syscall_exit_to_user_mode+0x81/0x270
? do_syscall_64+0x8b/0x180
? do_syscall_64+0x8b/0x180
? exc_page_fault+0x93/0x1b0
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x736223927a0a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89
RSP: 002b:00007ffc0bb2ada8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000583df50f9c78 RCX: 0000736223927a0a
RDX: 0000000000000020 RSI: 0000583df50ee510 RDI: 0000000000000003
RBP: 0000583df50d4940 R08: 00007ffc0bb2adb0 R09: 0000000000000080
R10: 0000000000000000 R11: 0000000000000246 R12: 0000583df5103ae0
R13: 000000000000035a R14: 0000583df50f9c30 R15: 0000583ddddddf00
</TASK>
---[ end trace ]---
------------[ cut here ]------------
UBSAN: array-index-out-of-bounds in /home/kernel/COD/linux/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c:1546:11
index 28 is out of range for type 'stats_query_entry [19]'
CPU: 12 PID: 858 Comm: systemd-network Not tainted 6.9.0-060900rc7-generic #202405052133
Hardware name: HP ProLiant DL360 Gen9/ProLiant DL360 Gen9, BIOS P89 10/21/2019
Call Trace:
<TASK>
dump_stack_lvl+0x76/0xa0
dump_stack+0x10/0x20
__ubsan_handle_out_of_bounds+0xcb/0x110
bnx2x_prep_fw_stats_req+0x2fd/0x310 [bnx2x]
bnx2x_stats_init+0x156/0x320 [bnx2x]
bnx2x_post_irq_nic_init+0x81/0x1a0 [bnx2x]
bnx2x_nic_load+0x8e8/0x19e0 [bnx2x]
bnx2x_open+0x16b/0x290 [bnx2x]
__dev_open+0x10e/0x1d0
__dev_change_flags+0x1bb/0x240
? sock_def_readable+0x52/0xf0
dev_change_flags+0x27/0x80
do_setlink+0xab7/0xe50
? rtnl_getlink+0x3c7/0x470
? __nla_validate_parse+0x49/0x1d0
rtnl_setlink+0x12f/0x1f0
? security_capable+0x47/0x80
rtnetlink_rcv_msg+0x170/0x440
? ep_done_scan+0xe4/0x100
? __pfx_rtnetlink_rcv_msg+0x10/0x10
netlink_rcv_skb+0x5d/0x110
rtnetlink_rcv+0x15/0x30
netlink_unicast+0x243/0x380
netlink_sendmsg+0x213/0x460
__sys_sendto+0x21e/0x230
__x64_sys_sendto+0x24/0x40
x64_sys_call+0x1c33/0x25c0
do_syscall_64+0x7e/0x180
? __task_pid_nr_ns+0x6c/0xc0
? syscall_exit_to_user_mode+0x81/0x270
? do_syscall_64+0x8b/0x180
? do_syscall_64+0x8b/0x180
? __task_pid_nr_ns+0x6c/0xc0
? syscall_exit_to_user_mode+0x81/0x270
? do_syscall_64+0x8b/0x180
? do_syscall_64+0x8b/0x180
? exc_page_fault+0x93/0x1b0
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x736223927a0a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89
RSP: 002b:00007ffc0bb2ada8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000583df50f9c78 RCX: 0000736223927a0a
RDX: 0000000000000020 RSI: 0000583df50ee510 RDI: 0000000000000003
RBP: 0000583df50d4940 R08: 00007ffc0bb2adb0 R09: 0000000000000080
R10: 0000000000000000 R11: 0000000000000246 R12: 0000583df5103ae0
R13: 000000000000035a R14: 0000583df50f9c30 R15: 0000583ddddddf00
</TASK>
---[ end trace ]---
bnx2x 0000:04:00.1: 32.000 Gb/s available PCIe bandwidth (5.0 GT/s PCIe x8 link)
bnx2x 0000:04:00.1 eno50: renamed from eth0
------------[ cut here ]------------
UBSAN: array-index-out-of-bounds in /home/kernel/COD/linux/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c:1895:8
index 29 is out of range for type 'stats_query_entry [19]'
CPU: 13 PID: 163 Comm: kworker/u96:1 Not tainted 6.9.0-060900rc7-generic #202405052133
Hardware name: HP ProLiant DL360 Gen9/ProLiant DL360 Gen9, BIOS P89 10/21/2019
Workqueue: bnx2x bnx2x_sp_task [bnx2x]
Call Trace:
<TASK>
dump_stack_lvl+0x76/0xa0
dump_stack+0x10/0x20
__ubsan_handle_out_of_bounds+0xcb/0x110
bnx2x_iov_adjust_stats_req+0x3c4/0x3d0 [bnx2x]
bnx2x_storm_stats_post.part.0+0x4a/0x330 [bnx2x]
? bnx2x_hw_stats_post+0x231/0x250 [bnx2x]
bnx2x_stats_start+0x44/0x70 [bnx2x]
bnx2x_stats_handle+0x149/0x350 [bnx2x]
bnx2x_attn_int_asserted+0x998/0x9b0 [bnx2x]
bnx2x_sp_task+0x491/0x5c0 [bnx2x]
process_one_work+0x18d/0x3f0
worker_thread+0x304/0x440
? __pfx_worker_thread+0x10/0x10
kthread+0xe4/0x110
? __pfx_kthread+0x10/0x10
ret_from_fork+0x47/0x70
? __pfx_kthread+0x10/0x10
ret_from_fork_asm+0x1a/0x30
</TASK>
---[ end trace ]---
Fixes: 7d0445d66a76 ("bnx2x: clamp num_queues to prevent passing a negative value")
Signed-off-by: Ghadi Elie Rahme <ghadi.rahme@...onical.com>
---
drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index a8e07e51418f..837617b99089 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -66,7 +66,12 @@ static int bnx2x_calc_num_queues(struct bnx2x *bp)
if (is_kdump_kernel())
nq = 1;
- nq = clamp(nq, 1, BNX2X_MAX_QUEUES(bp));
+ int max_nq = FP_SB_MAX_E1x - 1;
+
+ if(NO_FCOE(bp))
+ max_nq = FP_SB_MAX_E1x;
+
+ nq = clamp(nq, 1, max_nq);
return nq;
}
--
2.43.0
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