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CVE-2025-38532 (GCVE-0-2025-38532)

Vulnerability from cvelistv5 – Published: 2025-08-16 11:12 – Updated: 2026-08-05 12:02
VLAI
Title
net: libwx: properly reset Rx ring descriptor
Summary
In 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] <IRQ> [ 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] </IRQ> [ 549.186577] [ C16] <TASK> [ 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---
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 3c47e8ae113a68da47987750d9896e325d0aeedd , < d510116c80b37efb100ce8d5ee326214b0157293 (git)
Affected: 3c47e8ae113a68da47987750d9896e325d0aeedd , < 10e27b2a6ebeda49e9c2897a699d3ce1ded565ee (git)
Affected: 3c47e8ae113a68da47987750d9896e325d0aeedd , < ee527d3fba4dae1d619d2d0438624002c8e99e24 (git)
Affected: 3c47e8ae113a68da47987750d9896e325d0aeedd , < d992ed7e1b687ad7df0763d3e015a5358646210b (git)
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Linux Linux Affected: 6.3
Unaffected: 0 , < 6.3 (semver)
Unaffected: 6.6.100 , ≤ 6.6.* (semver)
Unaffected: 6.12.40 , ≤ 6.12.* (semver)
Unaffected: 6.15.8 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/wangxun/libwx/wx_hw.c",
            "drivers/net/ethernet/wangxun/libwx/wx_lib.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "d510116c80b37efb100ce8d5ee326214b0157293",
              "status": "affected",
              "version": "3c47e8ae113a68da47987750d9896e325d0aeedd",
              "versionType": "git"
            },
            {
              "lessThan": "10e27b2a6ebeda49e9c2897a699d3ce1ded565ee",
              "status": "affected",
              "version": "3c47e8ae113a68da47987750d9896e325d0aeedd",
              "versionType": "git"
            },
            {
              "lessThan": "ee527d3fba4dae1d619d2d0438624002c8e99e24",
              "status": "affected",
              "version": "3c47e8ae113a68da47987750d9896e325d0aeedd",
              "versionType": "git"
            },
            {
              "lessThan": "d992ed7e1b687ad7df0763d3e015a5358646210b",
              "status": "affected",
              "version": "3c47e8ae113a68da47987750d9896e325d0aeedd",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/wangxun/libwx/wx_hw.c",
            "drivers/net/ethernet/wangxun/libwx/wx_lib.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.3"
            },
            {
              "lessThan": "6.3",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.100",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.16",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.100",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.40",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15.8",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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---"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The vulnerability is armed by a local device reset triggered through ethtool (`ethtool -K rxvlan`, `-C rx-usecs`, `-L`) reaching `wx_set_features()`/`wx_set_rx_itr()` \u2192 `txgbe_do_reset()`; no remote peer can induce a ring reinitialization since the driver has no `ndo_tx_timeout` or other packet-driven reset path.\nAC:L - The condition is fully deterministic: after every reset, descriptor 0 always retains its stale `DD|EOP` writeback because `wx_alloc_rx_buffers()` clears `status_error` only after incrementing past it and the ring is never zeroed, so the first NAPI poll after the reset processes the bogus descriptor with no race, timing window, or memory-layout dependency.\nPR:L - The triggering ethtool set-operations are gated by `ns_capable(net-\u003euser_ns, CAP_NET_ADMIN)` and `GENL_UNS_ADMIN_PERM`, i.e. namespaced capabilities, so an unprivileged user who is root in a user namespace owning the netns that holds the interface (a routine SR-IOV/delegated-NIC container setup) can perform the feature toggle.\nUI:N - The attacker performs the feature toggle themselves and the corrupted descriptor is consumed automatically by the NAPI poll on the next received frame; no separate victim has to mount, open, or launch anything.\nS:U - The wild-pointer read, the malformed skb, and the resulting BUG() all occur within the kernel that owns the driver and the network stack; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - `wx_pull_tail()` runs on an skb with `nr_frags == 0`, dereferencing an uninitialized `skb_shinfo()-\u003efrags[0]` and copying up to 256 bytes from an arbitrary kernel address into the skb\u0027s linear data, which is then handed to `napi_gro_receive()` for delivery to local sockets or forwarding onto the wire; the resulting `skb_headlen()` (74) also exceeds the real 60 bytes of data, giving further out-of-bounds reads.\nI:H - `skb-\u003edata_len -= pull_len` underflows to 0xfffffff2 and `skb_frag_size_sub()` writes through the garbage frag descriptor, so an skb whose `len`/`data_len`/`headlen` are mutually inconsistent is injected into the network stack, where the resulting size arithmetic drives out-of-bounds copies \u2014 kernel memory corruption at addresses the driver does not own.\nA:H - The commit message documents the concrete outcome: `kernel BUG at net/core/skbuff.c:2814` in `__pskb_pull_tail()` from `__skb_pad()` in `wx_clean_rx_irq()`, an unrecoverable panic in softirq context, and the wild frag pointer can independently fault on an unmapped address."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:02:42.423Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/d510116c80b37efb100ce8d5ee326214b0157293"
        },
        {
          "url": "https://git.kernel.org/stable/c/10e27b2a6ebeda49e9c2897a699d3ce1ded565ee"
        },
        {
          "url": "https://git.kernel.org/stable/c/ee527d3fba4dae1d619d2d0438624002c8e99e24"
        },
        {
          "url": "https://git.kernel.org/stable/c/d992ed7e1b687ad7df0763d3e015a5358646210b"
        }
      ],
      "title": "net: libwx: properly reset Rx ring descriptor",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38532",
    "datePublished": "2025-08-16T11:12:25.161Z",
    "dateReserved": "2025-04-16T04:51:24.023Z",
    "dateUpdated": "2026-08-05T12:02:42.423Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-38532",
      "date": "2026-09-15",
      "epss": "0.00156",
      "percentile": "0.05144"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-38532\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-08-16T12:15:28.823\",\"lastModified\":\"2026-07-30T06:23:24.480\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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---\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: libwx: restablecimiento correcto del descriptor de anillo Rx. Cuando el reinicio del dispositivo se activa por cambios en las funciones, como la activaci\u00f3n o desactivaci\u00f3n de la descarga de la VLAN Rx, se llama a wx-\u0026gt;do_reset() para reinicializar los anillos Rx. El anillo de descriptores de hardware puede conservar valores obsoletos de sesiones anteriores. Adem\u00e1s, establecer la longitud a 0 en rx_desc[0] provocar\u00eda la creaci\u00f3n de SKB malformados. Corr\u00edjalo para asegurar un borr\u00f3n y cuenta nueva tras el reinicio del dispositivo. [ 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 \u0026lt;0f\u0026gt; 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 \u0026lt;45\u0026gt; 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\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/net/ethernet/wangxun/libwx/wx_hw.c\",\"drivers/net/ethernet/wangxun/libwx/wx_lib.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"3c47e8ae113a68da47987750d9896e325d0aeedd\",\"lessThan\":\"d510116c80b37efb100ce8d5ee326214b0157293\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3c47e8ae113a68da47987750d9896e325d0aeedd\",\"lessThan\":\"10e27b2a6ebeda49e9c2897a699d3ce1ded565ee\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3c47e8ae113a68da47987750d9896e325d0aeedd\",\"lessThan\":\"ee527d3fba4dae1d619d2d0438624002c8e99e24\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3c47e8ae113a68da47987750d9896e325d0aeedd\",\"lessThan\":\"d992ed7e1b687ad7df0763d3e015a5358646210b\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/net/ethernet/wangxun/libwx/wx_hw.c\",\"drivers/net/ethernet/wangxun/libwx/wx_lib.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.3\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.3\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.100\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.40\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.15.8\",\"lessThanOrEqual\":\"6.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.16\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-909\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.3\",\"versionEndExcluding\":\"6.6.100\",\"matchCriteriaId\":\"2FFFB27A-1108-4092-B495-80F39EDD8FF9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.12.40\",\"matchCriteriaId\":\"0099D5A4-B157-4D36-8858-982C7D579030\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.13\",\"versionEndExcluding\":\"6.15.8\",\"matchCriteriaId\":\"C7AFE5B0-F3B1-4D30-B8BF-EDA0385C4746\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.16:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"6D4894DB-CCFE-4602-B1BF-3960B2E19A01\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.16:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"09709862-E348-4378-8632-5A7813EDDC86\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.16:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"415BF58A-8197-43F5-B3D7-D1D63057A26E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.16:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"A0517869-312D-4429-80C2-561086E1421C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.16:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"85421F4E-C863-4ABF-B4B4-E887CC2F7F92\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.16:rc6:*:*:*:*:*:*\",\"matchCriteriaId\":\"3827F0D4-5FEE-4181-B267-5A45E7CA11FC\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/10e27b2a6ebeda49e9c2897a699d3ce1ded565ee\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/d510116c80b37efb100ce8d5ee326214b0157293\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/d992ed7e1b687ad7df0763d3e015a5358646210b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ee527d3fba4dae1d619d2d0438624002c8e99e24\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-07-30T09:07:58+00:00",
      "cve": "CVE-2025-38532",
      "id": "CVE-2025-38532",
      "initial_release_date": "2025-08-16T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: net: libwx: properly reset Rx ring descriptor",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-38532.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-28T01:50:53Z",
      "cve": "CVE-2025-38532",
      "id": "CVE-2025-38532",
      "initial_release_date": "2025-08-16T23:22:35Z",
      "product_status:known_not_affected": "437",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-38532",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-38532.json",
      "version": "11"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.