CVE-2023-53581 Vulnerability Analysis & Exploit Details

CVE-2023-53581
Vulnerability Scoring

Analysis In Progress
Analysis In Progress

Attack Complexity Details

  • Attack Complexity:
    Attack Complexity Analysis In Progress
  • Attack Vector:
    Attack Vector Under Analysis
  • Privileges Required: None
    No authentication is required for exploitation.
  • Scope:
    Impact is confined to the initially vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2023-53581 Details

Status: Awaiting Analysis

Last updated: 🕝 06 Oct 2025, 14:56 UTC
Originally published on: 🕓 04 Oct 2025, 16:15 UTC

Time between publication and last update: 1 days

CVSS Release:

CVE-2023-53581 Vulnerability Summary

CVE-2023-53581: In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Check for NOT_READY flag state after locking Currently the check for NOT_READY flag is performed before obtaining the necessary lock. This opens a possibility for race condition when the flow is concurrently removed from unready_flows list by the workqueue task, which causes a double-removal from the list and a crash[0]. Fix the issue by moving the flag check inside the section protected by uplink_priv->unready_flows_lock mutex. [0]: [44376.389654] general protection fault, probably for non-canonical address 0xdead000000000108: 0000 [#1] SMP [44376.391665] CPU: 7 PID: 59123 Comm: tc Not tainted 6.4.0-rc4+ #1 [44376.392984] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 [44376.395342] RIP: 0010:mlx5e_tc_del_fdb_flow+0xb3/0x340 [mlx5_core] [44376.396857] Code: 00 48 8b b8 68 ce 02 00 e8 8a 4d 02 00 4c 8d a8 a8 01 00 00 4c 89 ef e8 8b 79 88 e1 48 8b 83 98 06 00 00 48 8b 93 90 06 00 00 <48> 89 42 08 48 89 10 48 b8 00 01 00 00 00 00 ad de 48 89 83 90 06 [44376.399167] RSP: 0018:ffff88812cc97570 EFLAGS: 00010246 [44376.399680] RAX: dead000000000122 RBX: ffff8881088e3800 RCX: ffff8881881bac00 [44376.400337] RDX: dead000000000100 RSI: ffff88812cc97500 RDI: ffff8881242f71b0 [44376.401001] RBP: ffff88811cbb0940 R08: 0000000000000400 R09: 0000000000000001 [44376.401663] R10: 0000000000000001 R11: 0000000000000000 R12: ffff88812c944000 [44376.402342] R13: ffff8881242f71a8 R14: ffff8881222b4000 R15: 0000000000000000 [44376.402999] FS: 00007f0451104800(0000) GS:ffff88852cb80000(0000) knlGS:0000000000000000 [44376.403787] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [44376.404343] CR2: 0000000000489108 CR3: 0000000123a79003 CR4: 0000000000370ea0 [44376.405004] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [44376.405665] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [44376.406339] Call Trace: [44376.406651] <TASK> [44376.406939] ? die_addr+0x33/0x90 [44376.407311] ? exc_general_protection+0x192/0x390 [44376.407795] ? asm_exc_general_protection+0x22/0x30 [44376.408292] ? mlx5e_tc_del_fdb_flow+0xb3/0x340 [mlx5_core] [44376.408876] __mlx5e_tc_del_fdb_peer_flow+0xbc/0xe0 [mlx5_core] [44376.409482] mlx5e_tc_del_flow+0x42/0x210 [mlx5_core] [44376.410055] mlx5e_flow_put+0x25/0x50 [mlx5_core] [44376.410529] mlx5e_delete_flower+0x24b/0x350 [mlx5_core] [44376.411043] tc_setup_cb_reoffload+0x22/0x80 [44376.411462] fl_reoffload+0x261/0x2f0 [cls_flower] [44376.411907] ? mlx5e_rep_indr_setup_ft_cb+0x160/0x160 [mlx5_core] [44376.412481] ? mlx5e_rep_indr_setup_ft_cb+0x160/0x160 [mlx5_core] [44376.413044] tcf_block_playback_offloads+0x76/0x170 [44376.413497] tcf_block_unbind+0x7b/0xd0 [44376.413881] tcf_block_setup+0x17d/0x1c0 [44376.414269] tcf_block_offload_cmd.isra.0+0xf1/0x130 [44376.414725] tcf_block_offload_unbind+0x43/0x70 [44376.415153] __tcf_block_put+0x82/0x150 [44376.415532] ingress_destroy+0x22/0x30 [sch_ingress] [44376.415986] qdisc_destroy+0x3b/0xd0 [44376.416343] qdisc_graft+0x4d0/0x620 [44376.416706] tc_get_qdisc+0x1c9/0x3b0 [44376.417074] rtnetlink_rcv_msg+0x29c/0x390 [44376.419978] ? rep_movs_alternative+0x3a/0xa0 [44376.420399] ? rtnl_calcit.isra.0+0x120/0x120 [44376.420813] netlink_rcv_skb+0x54/0x100 [44376.421192] netlink_unicast+0x1f6/0x2c0 [44376.421573] netlink_sendmsg+0x232/0x4a0 [44376.421980] sock_sendmsg+0x38/0x60 [44376.422328] ____sys_sendmsg+0x1d0/0x1e0 [44376.422709] ? copy_msghdr_from_user+0x6d/0xa0 [44376.423127] ___sys_sendmsg+0x80/0xc0 [44376.423495] ? ___sys_recvmsg+0x8b/0xc0 [44376.423869] __sys_sendmsg+0x51/0x90 [44376.424226] do_syscall_64+0x3d/0x90 [44376.424587] entry_SYSCALL_64_after_hwframe+0x46/0xb0 [44376.425046] RIP: 0033:0x7f045134f887 [44376.425403] Code: 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 ---truncated---

Assessing the Risk of CVE-2023-53581

Access Complexity Graph

The exploitability of CVE-2023-53581 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2023-53581

No exploitability data is available for CVE-2023-53581.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2023-53581, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2023-53581, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: None
    CVE-2023-53581 does not compromise confidentiality.
  • Integrity: None
    CVE-2023-53581 does not impact data integrity.
  • Availability: None
    CVE-2023-53581 does not affect system availability.

CVE-2023-53581 References

External References

CWE Common Weakness Enumeration

Unknown

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