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ubuntucveUbuntu.comUB:CVE-2022-48729
HistoryJun 20, 2024 - 12:00 a.m.

CVE-2022-48729

2024-06-2000:00:00
ubuntu.com
ubuntu.com
3
linux kernel
cve-2022-48729
vulnerability
ib/hfi1
ipoib send_queue_size
panic
fix
item size

AI Score

6.7

Confidence

High

In the Linux kernel, the following vulnerability has been resolved:
IB/hfi1: Fix panic with larger ipoib send_queue_size When the ipoib
send_queue_size is increased from the default the following panic happens:
RIP: 0010:hfi1_ipoib_drain_tx_ring+0x45/0xf0 [hfi1] Code: 31 e4 eb 0f 8b 85
c8 02 00 00 41 83 c4 01 44 39 e0 76 60 8b 8d cc 02 00 00 44 89 e3 be 01 00
00 00 d3 e3 48 03 9d c0 02 00 00 <c7> 83 18 01 00 00 00 00 00 00 48 8b bb
30 01 00 00 e8 25 af a7 e0 RSP: 0018:ffffc9000798f4a0 EFLAGS: 00010286 RAX:
0000000000008000 RBX: ffffc9000aa0f000 RCX: 000000000000000f RDX:
0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP:
ffff88810ff08000 R08: ffff88889476d900 R09: 0000000000000101 R10:
0000000000000000 R11: ffffc90006590ff8 R12: 0000000000000200 R13:
ffffc9000798fba8 R14: 0000000000000000 R15: 0000000000000001 FS:
00007fd0f79cc3c0(0000) GS:ffff88885fb00000(0000) knlGS:0000000000000000 CS:
0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc9000aa0f118 CR3:
0000000889c84001 CR4: 00000000001706e0 Call Trace: <TASK>
hfi1_ipoib_napi_tx_disable+0x45/0x60 [hfi1] hfi1_ipoib_dev_stop+0x18/0x80
[hfi1] ipoib_ib_dev_stop+0x1d/0x40 [ib_ipoib] ipoib_stop+0x48/0xc0
[ib_ipoib] __dev_close_many+0x9e/0x110 __dev_change_flags+0xd9/0x210
dev_change_flags+0x21/0x60 do_setlink+0x31c/0x10f0 ?
__nla_validate_parse+0x12d/0x1a0 ? __nla_parse+0x21/0x30 ?
inet6_validate_link_af+0x5e/0xf0 ? cpumask_next+0x1f/0x20 ?
__snmp6_fill_stats64.isra.53+0xbb/0x140 ? __nla_validate_parse+0x47/0x1a0
__rtnl_newlink+0x530/0x910 ? pskb_expand_head+0x73/0x300 ?
__kmalloc_node_track_caller+0x109/0x280 ? __nla_put+0xc/0x20 ?
cpumask_next_and+0x20/0x30 ? update_sd_lb_stats.constprop.144+0xd3/0x820 ?
_raw_spin_unlock_irqrestore+0x25/0x37 ? __wake_up_common_lock+0x87/0xc0 ?
kmem_cache_alloc_trace+0x3d/0x3d0 rtnl_newlink+0x43/0x60 The issue happens
when the shift that should have been a function of the txq item size
mistakenly used the ring size. Fix by using the item size.

AI Score

6.7

Confidence

High