GHSA-4C9Q-7835-998J
Vulnerability from github – Published: 2025-08-16 12:30 – Updated: 2025-11-18 18:32In the Linux kernel, the following vulnerability has been resolved:
net: libwx: properly reset Rx ring descriptor
When device reset is triggered by feature changes such as toggling Rx VLAN offload, wx->do_reset() is called to reinitialize Rx rings. The hardware descriptor ring may retain stale values from previous sessions. And only set the length to 0 in rx_desc[0] would result in building malformed SKBs. Fix it to ensure a clean slate after device reset.
[ 549.186435] [ C16] ------------[ cut here ]------------ [ 549.186457] [ C16] kernel BUG at net/core/skbuff.c:2814! [ 549.186468] [ C16] Oops: invalid opcode: 0000 [#1] SMP NOPTI [ 549.186472] [ C16] CPU: 16 UID: 0 PID: 0 Comm: swapper/16 Kdump: loaded Not tainted 6.16.0-rc4+ #23 PREEMPT(voluntary) [ 549.186476] [ C16] Hardware name: Micro-Star International Co., Ltd. MS-7E16/X670E GAMING PLUS WIFI (MS-7E16), BIOS 1.90 12/31/2024 [ 549.186478] [ C16] RIP: 0010:__pskb_pull_tail+0x3ff/0x510 [ 549.186484] [ C16] Code: 06 f0 ff 4f 34 74 7b 4d 8b 8c 24 c8 00 00 00 45 8b 84 24 c0 00 00 00 e9 c8 fd ff ff 48 c7 44 24 08 00 00 00 00 e9 5e fe ff ff <0f> 0b 31 c0 e9 23 90 5b ff 41 f7 c6 ff 0f 00 00 75 bf 49 8b 06 a8 [ 549.186487] [ C16] RSP: 0018:ffffb391c0640d70 EFLAGS: 00010282 [ 549.186490] [ C16] RAX: 00000000fffffff2 RBX: ffff8fe7e4d40200 RCX: 00000000fffffff2 [ 549.186492] [ C16] RDX: ffff8fe7c3a4bf8e RSI: 0000000000000180 RDI: ffff8fe7c3a4bf40 [ 549.186494] [ C16] RBP: ffffb391c0640da8 R08: ffff8fe7c3a4c0c0 R09: 000000000000000e [ 549.186496] [ C16] R10: ffffb391c0640d88 R11: 000000000000000e R12: ffff8fe7e4d40200 [ 549.186497] [ C16] R13: 00000000fffffff2 R14: ffff8fe7fa01a000 R15: 00000000fffffff2 [ 549.186499] [ C16] FS: 0000000000000000(0000) GS:ffff8fef5ae40000(0000) knlGS:0000000000000000 [ 549.186502] [ C16] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 549.186503] [ C16] CR2: 00007f77d81d6000 CR3: 000000051a032000 CR4: 0000000000750ef0 [ 549.186505] [ C16] PKRU: 55555554 [ 549.186507] [ C16] Call Trace: [ 549.186510] [ C16] [ 549.186513] [ C16] ? srso_alias_return_thunk+0x5/0xfbef5 [ 549.186517] [ C16] __skb_pad+0xc7/0xf0 [ 549.186523] [ C16] wx_clean_rx_irq+0x355/0x3b0 [libwx] [ 549.186533] [ C16] wx_poll+0x92/0x120 [libwx] [ 549.186540] [ C16] __napi_poll+0x28/0x190 [ 549.186544] [ C16] net_rx_action+0x301/0x3f0 [ 549.186548] [ C16] ? srso_alias_return_thunk+0x5/0xfbef5 [ 549.186551] [ C16] ? __raw_spin_lock_irqsave+0x1e/0x50 [ 549.186554] [ C16] ? srso_alias_return_thunk+0x5/0xfbef5 [ 549.186557] [ C16] ? wake_up_nohz_cpu+0x35/0x160 [ 549.186559] [ C16] ? srso_alias_return_thunk+0x5/0xfbef5 [ 549.186563] [ C16] handle_softirqs+0xf9/0x2c0 [ 549.186568] [ C16] __irq_exit_rcu+0xc7/0x130 [ 549.186572] [ C16] common_interrupt+0xb8/0xd0 [ 549.186576] [ C16] [ 549.186577] [ C16] [ 549.186579] [ C16] asm_common_interrupt+0x22/0x40 [ 549.186582] [ C16] RIP: 0010:cpuidle_enter_state+0xc2/0x420 [ 549.186585] [ C16] Code: 00 00 e8 11 0e 5e ff e8 ac f0 ff ff 49 89 c5 0f 1f 44 00 00 31 ff e8 0d ed 5c ff 45 84 ff 0f 85 40 02 00 00 fb 0f 1f 44 00 00 <45> 85 f6 0f 88 84 01 00 00 49 63 d6 48 8d 04 52 48 8d 04 82 49 8d [ 549.186587] [ C16] RSP: 0018:ffffb391c0277e78 EFLAGS: 00000246 [ 549.186590] [ C16] RAX: ffff8fef5ae40000 RBX: 0000000000000003 RCX: 0000000000000000 [ 549.186591] [ C16] RDX: 0000007fde0faac5 RSI: ffffffff826e53f6 RDI: ffffffff826fa9b3 [ 549.186593] [ C16] RBP: ffff8fe7c3a20800 R08: 0000000000000002 R09: 0000000000000000 [ 549.186595] [ C16] R10: 0000000000000000 R11: 000000000000ffff R12: ffffffff82ed7a40 [ 549.186596] [ C16] R13: 0000007fde0faac5 R14: 0000000000000003 R15: 0000000000000000 [ 549.186601] [ C16] ? cpuidle_enter_state+0xb3/0x420 [ 549.186605] [ C16] cpuidle_en ---truncated---
{
"affected": [],
"aliases": [
"CVE-2025-38532"
],
"database_specific": {
"cwe_ids": [
"CWE-909"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-08-16T12:15:28Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: libwx: properly reset Rx ring descriptor\n\nWhen device reset is triggered by feature changes such as toggling Rx\nVLAN offload, wx-\u003edo_reset() is called to reinitialize Rx rings. The\nhardware descriptor ring may retain stale values from previous sessions.\nAnd only set the length to 0 in rx_desc[0] would result in building\nmalformed SKBs. Fix it to ensure a clean slate after device reset.\n\n[ 549.186435] [ C16] ------------[ cut here ]------------\n[ 549.186457] [ C16] kernel BUG at net/core/skbuff.c:2814!\n[ 549.186468] [ C16] Oops: invalid opcode: 0000 [#1] SMP NOPTI\n[ 549.186472] [ C16] CPU: 16 UID: 0 PID: 0 Comm: swapper/16 Kdump: loaded Not tainted 6.16.0-rc4+ #23 PREEMPT(voluntary)\n[ 549.186476] [ C16] Hardware name: Micro-Star International Co., Ltd. MS-7E16/X670E GAMING PLUS WIFI (MS-7E16), BIOS 1.90 12/31/2024\n[ 549.186478] [ C16] RIP: 0010:__pskb_pull_tail+0x3ff/0x510\n[ 549.186484] [ C16] Code: 06 f0 ff 4f 34 74 7b 4d 8b 8c 24 c8 00 00 00 45 8b 84 24 c0 00 00 00 e9 c8 fd ff ff 48 c7 44 24 08 00 00 00 00 e9 5e fe ff ff \u003c0f\u003e 0b 31 c0 e9 23 90 5b ff 41 f7 c6 ff 0f 00 00 75 bf 49 8b 06 a8\n[ 549.186487] [ C16] RSP: 0018:ffffb391c0640d70 EFLAGS: 00010282\n[ 549.186490] [ C16] RAX: 00000000fffffff2 RBX: ffff8fe7e4d40200 RCX: 00000000fffffff2\n[ 549.186492] [ C16] RDX: ffff8fe7c3a4bf8e RSI: 0000000000000180 RDI: ffff8fe7c3a4bf40\n[ 549.186494] [ C16] RBP: ffffb391c0640da8 R08: ffff8fe7c3a4c0c0 R09: 000000000000000e\n[ 549.186496] [ C16] R10: ffffb391c0640d88 R11: 000000000000000e R12: ffff8fe7e4d40200\n[ 549.186497] [ C16] R13: 00000000fffffff2 R14: ffff8fe7fa01a000 R15: 00000000fffffff2\n[ 549.186499] [ C16] FS: 0000000000000000(0000) GS:ffff8fef5ae40000(0000) knlGS:0000000000000000\n[ 549.186502] [ C16] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 549.186503] [ C16] CR2: 00007f77d81d6000 CR3: 000000051a032000 CR4: 0000000000750ef0\n[ 549.186505] [ C16] PKRU: 55555554\n[ 549.186507] [ C16] Call Trace:\n[ 549.186510] [ C16] \u003cIRQ\u003e\n[ 549.186513] [ C16] ? srso_alias_return_thunk+0x5/0xfbef5\n[ 549.186517] [ C16] __skb_pad+0xc7/0xf0\n[ 549.186523] [ C16] wx_clean_rx_irq+0x355/0x3b0 [libwx]\n[ 549.186533] [ C16] wx_poll+0x92/0x120 [libwx]\n[ 549.186540] [ C16] __napi_poll+0x28/0x190\n[ 549.186544] [ C16] net_rx_action+0x301/0x3f0\n[ 549.186548] [ C16] ? srso_alias_return_thunk+0x5/0xfbef5\n[ 549.186551] [ C16] ? __raw_spin_lock_irqsave+0x1e/0x50\n[ 549.186554] [ C16] ? srso_alias_return_thunk+0x5/0xfbef5\n[ 549.186557] [ C16] ? wake_up_nohz_cpu+0x35/0x160\n[ 549.186559] [ C16] ? srso_alias_return_thunk+0x5/0xfbef5\n[ 549.186563] [ C16] handle_softirqs+0xf9/0x2c0\n[ 549.186568] [ C16] __irq_exit_rcu+0xc7/0x130\n[ 549.186572] [ C16] common_interrupt+0xb8/0xd0\n[ 549.186576] [ C16] \u003c/IRQ\u003e\n[ 549.186577] [ C16] \u003cTASK\u003e\n[ 549.186579] [ C16] asm_common_interrupt+0x22/0x40\n[ 549.186582] [ C16] RIP: 0010:cpuidle_enter_state+0xc2/0x420\n[ 549.186585] [ C16] Code: 00 00 e8 11 0e 5e ff e8 ac f0 ff ff 49 89 c5 0f 1f 44 00 00 31 ff e8 0d ed 5c ff 45 84 ff 0f 85 40 02 00 00 fb 0f 1f 44 00 00 \u003c45\u003e 85 f6 0f 88 84 01 00 00 49 63 d6 48 8d 04 52 48 8d 04 82 49 8d\n[ 549.186587] [ C16] RSP: 0018:ffffb391c0277e78 EFLAGS: 00000246\n[ 549.186590] [ C16] RAX: ffff8fef5ae40000 RBX: 0000000000000003 RCX: 0000000000000000\n[ 549.186591] [ C16] RDX: 0000007fde0faac5 RSI: ffffffff826e53f6 RDI: ffffffff826fa9b3\n[ 549.186593] [ C16] RBP: ffff8fe7c3a20800 R08: 0000000000000002 R09: 0000000000000000\n[ 549.186595] [ C16] R10: 0000000000000000 R11: 000000000000ffff R12: ffffffff82ed7a40\n[ 549.186596] [ C16] R13: 0000007fde0faac5 R14: 0000000000000003 R15: 0000000000000000\n[ 549.186601] [ C16] ? cpuidle_enter_state+0xb3/0x420\n[ 549.186605] [ C16] cpuidle_en\n---truncated---",
"id": "GHSA-4c9q-7835-998j",
"modified": "2025-11-18T18:32:48Z",
"published": "2025-08-16T12:30:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38532"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/10e27b2a6ebeda49e9c2897a699d3ce1ded565ee"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d510116c80b37efb100ce8d5ee326214b0157293"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d992ed7e1b687ad7df0763d3e015a5358646210b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ee527d3fba4dae1d619d2d0438624002c8e99e24"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
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