# CVE-2022-48729: linux: In the Linux kernel, the following vulnerability has been resolved:  IB/hfi1: Fix panic with larger ipoib send_queue_...

CVE-2022-48729 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-48729, released June 20, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2022-48729
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0021
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 20, 2024

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 5.16.10-1 | [DEBIAN-CVE-2022-48729](https://patchblox.com/security/data/fix/linux/debian-cve-2022-48729.md) | Jun 20, 2024 |
| Linux | linux Debian 13.5 (trixie) | 5.16.10-1 | [DEBIAN-CVE-2022-48729](https://patchblox.com/security/data/fix/linux/debian-cve-2022-48729.md) | Jun 20, 2024 |
| Linux | linux Debian 14 | 5.16.10-1 | [DEBIAN-CVE-2022-48729](https://patchblox.com/security/data/fix/linux/debian-cve-2022-48729.md) | Jun 20, 2024 |

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