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CVE-2022-49869— bnxt_en: Fix possible crash in bnxt_hwrm_set_coal()

Quick assessment

Affected

Linux Linux

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于bnxt_en驱动中bnxt_hwrm_set_coal函数的空指针取消引用问题。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.21% · P11 Updated May 13, 2026

Possible ATT&CK Techniques 2 AI

T1562 T1053 · Scheduled Task/Job

Affected Version Matrix 12

Vendor	Product	Version Range	Status
Linux	Linux	`2151fe0830fdb951f8ecfcfe67306fdef2366aa0< a5a05fbef4a0dfe45fe03b2f1d02ba23aebf5384`	affected
		`2151fe0830fdb951f8ecfcfe67306fdef2366aa0< 38147073c96dce8c7e142ce0e5f305a420a729ba`	affected
		`2151fe0830fdb951f8ecfcfe67306fdef2366aa0< ac257c43fa615d22180916074feed803b8bb8cb0`	affected
		`2151fe0830fdb951f8ecfcfe67306fdef2366aa0< 7781e32984cde65549bedc3201537e253297c98d`	affected
		`2151fe0830fdb951f8ecfcfe67306fdef2366aa0< 6d81ea3765dfa6c8a20822613c81edad1c4a16a0`	affected
		`5.4`	affected
		`< 5.4`	unaffected
		`5.4.225≤ 5.4.*`	unaffected
… +4 more rows

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I. Basic Information for CVE-2022-49869

Vulnerability Information

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Vulnerability Title

bnxt_en: Fix possible crash in bnxt_hwrm_set_coal()

Source: CVE Program / CVE List V5

Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: bnxt_en: Fix possible crash in bnxt_hwrm_set_coal() During the error recovery sequence, the rtnl_lock is not held for the entire duration and some datastructures may be freed during the sequence. Check for the BNXT_STATE_OPEN flag instead of netif_running() to ensure that the device is fully operational before proceeding to reconfigure the coalescing settings. This will fix a possible crash like this: BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 PGD 0 P4D 0 Oops: 0000 [#1] SMP NOPTI CPU: 10 PID: 181276 Comm: ethtool Kdump: loaded Tainted: G IOE --------- - - 4.18.0-348.el8.x86_64 #1 Hardware name: Dell Inc. PowerEdge R740/0F9N89, BIOS 2.3.10 08/15/2019 RIP: 0010:bnxt_hwrm_set_coal+0x1fb/0x2a0 [bnxt_en] Code: c2 66 83 4e 22 08 66 89 46 1c e8 10 cb 00 00 41 83 c6 01 44 39 b3 68 01 00 00 0f 8e a3 00 00 00 48 8b 93 c8 00 00 00 49 63 c6 <48> 8b 2c c2 48 8b 85 b8 02 00 00 48 85 c0 74 2e 48 8b 74 24 08 f6 RSP: 0018:ffffb11c8dcaba50 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff8d168a8b0ac0 RCX: 00000000000000c5 RDX: 0000000000000000 RSI: ffff8d162f72c000 RDI: ffff8d168a8b0b28 RBP: 0000000000000000 R08: b6e1f68a12e9a7eb R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000037 R12: ffff8d168a8b109c R13: ffff8d168a8b10aa R14: 0000000000000000 R15: ffffffffc01ac4e0 FS: 00007f3852e4c740(0000) GS:ffff8d24c0080000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000041b3ee003 CR4: 00000000007706e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 PKRU: 55555554 Call Trace: ethnl_set_coalesce+0x3ce/0x4c0 genl_family_rcv_msg_doit.isra.15+0x10f/0x150 genl_family_rcv_msg+0xb3/0x160 ? coalesce_fill_reply+0x480/0x480 genl_rcv_msg+0x47/0x90 ? genl_family_rcv_msg+0x160/0x160 netlink_rcv_skb+0x4c/0x120 genl_rcv+0x24/0x40 netlink_unicast+0x196/0x230 netlink_sendmsg+0x204/0x3d0 sock_sendmsg+0x4c/0x50 __sys_sendto+0xee/0x160 ? syscall_trace_enter+0x1d3/0x2c0 ? __audit_syscall_exit+0x249/0x2a0 __x64_sys_sendto+0x24/0x30 do_syscall_64+0x5b/0x1a0 entry_SYSCALL_64_after_hwframe+0x65/0xca RIP: 0033:0x7f38524163bb

Source: CVE Program / CVE List V5

CVSS Information

N/A

Source: CVE Program / CVE List V5

Vulnerability Type

N/A

Source: CVE Program / CVE List V5

Vulnerability Title

Linux kernel 安全漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

Source: CNNVD (China National Vulnerability Database)

CVSS Information

N/A

Source: CNNVD (China National Vulnerability Database)

Vulnerability Type

N/A

Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
Linux	Linux	2151fe0830fdb951f8ecfcfe67306fdef2366aa0 ~ a5a05fbef4a0dfe45fe03b2f1d02ba23aebf5384	-
Linux	Linux	5.4	-

II. Public POCs for CVE-2022-49869

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2022-49869

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Patches & Fixes for CVE-2022-49869 (5)

https://www.cve.org/CVERecord?id=CVE-2022-49869

Same Patch Batch · Linux · 2025-05-01 · 245 CVEs total

CVE-2025-37750	9.8 CRITICAL	smb: client: fix UAF in decryption with multichannel
CVE-2025-37778	9.8 CRITICAL	ksmbd: Fix dangling pointer in krb_authenticate
CVE-2022-49770	9.8 CRITICAL	ceph: avoid putting the realm twice when decoding snaps fails
CVE-2022-49931	8.8 HIGH	IB/hfi1: Correctly move list in sc_disable()
CVE-2025-37776	8.8 HIGH	ksmbd: fix use-after-free in smb_break_all_levII_oplock()
CVE-2025-37777	8.8 HIGH	ksmbd: fix use-after-free in __smb2_lease_break_noti()
CVE-2025-37790	8.8 HIGH	net: mctp: Set SOCK_RCU_FREE
CVE-2022-49910	8.8 HIGH	Bluetooth: L2CAP: Fix use-after-free caused by l2cap_reassemble_sdu
CVE-2022-49886	8.4 HIGH	x86/tdx: Panic on bad configs that #VE on "private" memory access
CVE-2025-23159	8.4 HIGH	media: venus: hfi: add a check to handle OOB in sfr region
CVE-2025-37749	8.2 HIGH	net: ppp: Add bound checking for skb data on ppp_sync_txmung
CVE-2025-37774	7.8 HIGH	slab: ensure slab->obj_exts is clear in a newly allocated slab page
CVE-2025-37789	7.8 HIGH	net: openvswitch: fix nested key length validation in the set() action
CVE-2025-37779	7.8 HIGH	lib/iov_iter: fix to increase non slab folio refcount
CVE-2022-49920	7.8 HIGH	netfilter: nf_tables: netlink notifier might race to release objects
CVE-2022-49919	7.8 HIGH	netfilter: nf_tables: release flow rule object from commit path
CVE-2025-37756	7.8 HIGH	net: tls: explicitly disallow disconnect
CVE-2025-37761	7.8 HIGH	drm/xe: Fix an out-of-bounds shift when invalidating TLB
CVE-2025-37763	7.8 HIGH	drm/imagination: take paired job reference
CVE-2025-23141	7.8 HIGH	KVM: x86: Acquire SRCU in KVM_GET_MP_STATE to protect guest memory accesses

Showing top 20 of 245 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux

Same vendor: Linux

V. Comments for CVE-2022-49869

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Goal Reached Thanks to every supporter — we hit 100%!

CVE-2022-49869— bnxt_en: Fix possible crash in bnxt_hwrm_set_coal()

Quick assessment

Possible ATT&CK Techniques 2 AI

Affected Version Matrix 12

I. Basic Information for CVE-2022-49869

Vulnerability Information

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Affected Products

II. Public POCs for CVE-2022-49869

III. Intelligence Information for CVE-2022-49869

Patches & Fixes for CVE-2022-49869 (5)

Same Patch Batch · Linux · 2025-05-01 · 245 CVEs total

IV. Related Vulnerabilities

V. Comments for CVE-2022-49869

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