ghsa-c7jg-hhpr-v5pq
Vulnerability from github
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
{
"affected": [],
"aliases": [
"CVE-2022-49869"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-01T15:16:11Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbnxt_en: Fix possible crash in bnxt_hwrm_set_coal()\n\nDuring the error recovery sequence, the rtnl_lock is not held for the\nentire duration and some datastructures may be freed during the sequence.\nCheck for the BNXT_STATE_OPEN flag instead of netif_running() to ensure\nthat the device is fully operational before proceeding to reconfigure\nthe coalescing settings.\n\nThis will fix a possible crash like this:\n\nBUG: unable to handle kernel NULL pointer dereference at 0000000000000000\nPGD 0 P4D 0\nOops: 0000 [#1] SMP NOPTI\nCPU: 10 PID: 181276 Comm: ethtool Kdump: loaded Tainted: G IOE --------- - - 4.18.0-348.el8.x86_64 #1\nHardware name: Dell Inc. PowerEdge R740/0F9N89, BIOS 2.3.10 08/15/2019\nRIP: 0010:bnxt_hwrm_set_coal+0x1fb/0x2a0 [bnxt_en]\nCode: 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 \u003c48\u003e 8b 2c c2 48 8b 85 b8 02 00 00 48 85 c0 74 2e 48 8b 74 24 08 f6\nRSP: 0018:ffffb11c8dcaba50 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: ffff8d168a8b0ac0 RCX: 00000000000000c5\nRDX: 0000000000000000 RSI: ffff8d162f72c000 RDI: ffff8d168a8b0b28\nRBP: 0000000000000000 R08: b6e1f68a12e9a7eb R09: 0000000000000000\nR10: 0000000000000001 R11: 0000000000000037 R12: ffff8d168a8b109c\nR13: ffff8d168a8b10aa R14: 0000000000000000 R15: ffffffffc01ac4e0\nFS: 00007f3852e4c740(0000) GS:ffff8d24c0080000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000000000000000 CR3: 000000041b3ee003 CR4: 00000000007706e0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nPKRU: 55555554\nCall Trace:\n ethnl_set_coalesce+0x3ce/0x4c0\n genl_family_rcv_msg_doit.isra.15+0x10f/0x150\n genl_family_rcv_msg+0xb3/0x160\n ? coalesce_fill_reply+0x480/0x480\n genl_rcv_msg+0x47/0x90\n ? genl_family_rcv_msg+0x160/0x160\n netlink_rcv_skb+0x4c/0x120\n genl_rcv+0x24/0x40\n netlink_unicast+0x196/0x230\n netlink_sendmsg+0x204/0x3d0\n sock_sendmsg+0x4c/0x50\n __sys_sendto+0xee/0x160\n ? syscall_trace_enter+0x1d3/0x2c0\n ? __audit_syscall_exit+0x249/0x2a0\n __x64_sys_sendto+0x24/0x30\n do_syscall_64+0x5b/0x1a0\n entry_SYSCALL_64_after_hwframe+0x65/0xca\nRIP: 0033:0x7f38524163bb",
"id": "GHSA-c7jg-hhpr-v5pq",
"modified": "2025-05-01T15:31:50Z",
"published": "2025-05-01T15:31:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49869"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/38147073c96dce8c7e142ce0e5f305a420a729ba"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6d81ea3765dfa6c8a20822613c81edad1c4a16a0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7781e32984cde65549bedc3201537e253297c98d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a5a05fbef4a0dfe45fe03b2f1d02ba23aebf5384"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ac257c43fa615d22180916074feed803b8bb8cb0"
}
],
"schema_version": "1.4.0",
"severity": []
}
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.