{
  "cveId": "CVE-2025-38042",
  "url": "https://patchblox.com/security/cve/CVE-2025-38042",
  "summary": "CVE-2025-38042 is fixed in linux on 1 platform, first by DEBIAN-CVE-2025-38042, released June 18, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "dmaengine: ti: k3-udma-glue: Drop skip_fdq argument from k3_udma_glue_reset_rx_chn",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  dmaengine: ti: k3-udma-glue: Drop skip_fdq argument from k3_udma_glue_reset_rx_chn  The user of k3_udma_glue_reset_rx_chn() e.g. ti_am65_cpsw_nuss can run on multiple platforms having different DMA architectures. On some platforms there can be one FDQ for all flows in the RX channel while for others there is a separate FDQ for each flow in the RX channel.  So far we have been relying on the skip_fdq argument of k3_udma_glue_reset_rx_chn().  Instead of relying on the user to provide this information, infer it based on DMA architecture during k3_udma_glue_request_rx_chn() and save it in an internal flag \u0027single_fdq\u0027. Use that flag at k3_udma_glue_reset_rx_chn() to deicide if the FDQ needs to be cleared for every flow or just for flow 0.  Fixes the below issue on ti_am65_cpsw_nuss driver on AM62-SK.  \u003E ip link set eth1 down \u003E ip link set eth0 down \u003E ethtool -L eth0 rx 8 \u003E ip link set eth0 up \u003E modprobe -r ti_am65_cpsw_nuss  [  103.045726] ------------[ cut here ]------------ [  103.050505] k3_knav_desc_pool size 512000 != avail 64000 [  103.050703] WARNING: CPU: 1 PID: 450 at drivers/net/ethernet/ti/k3-cppi-desc-pool.c:33 k3_cppi_desc_pool_destroy\u002B0xa0/0xa8 [k3_cppi_desc_pool] [  103.068810] Modules linked in: ti_am65_cpsw_nuss(-) k3_cppi_desc_pool snd_soc_hdmi_codec crct10dif_ce snd_soc_simple_card snd_soc_simple_card_utils display_connector rtc_ti_k3 k3_j72xx_bandgap tidss drm_client_lib snd_soc_davinci_mcas p drm_dma_helper tps6598x phylink snd_soc_ti_udma rti_wdt drm_display_helper snd_soc_tlv320aic3x_i2c typec at24 phy_gmii_sel snd_soc_ti_edma snd_soc_tlv320aic3x sii902x snd_soc_ti_sdma sa2ul omap_mailbox drm_kms_helper authenc cfg80211 r fkill fuse drm drm_panel_orientation_quirks backlight ip_tables x_tables ipv6 [last unloaded: k3_cppi_desc_pool] [  103.119950] CPU: 1 UID: 0 PID: 450 Comm: modprobe Not tainted 6.13.0-rc7-00001-g9c5e3435fa66 #1011 [  103.119968] Hardware name: Texas Instruments AM625 SK (DT) [  103.119974] pstate: 80000005 (Nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [  103.119983] pc : k3_cppi_desc_pool_destroy\u002B0xa0/0xa8 [k3_cppi_desc_pool] [  103.148007] lr : k3_cppi_desc_pool_destroy\u002B0xa0/0xa8 [k3_cppi_desc_pool] [  103.154709] sp : ffff8000826ebbc0 [  103.158015] x29: ffff8000826ebbc0 x28: ffff0000090b6300 x27: 0000000000000000 [  103.165145] x26: 0000000000000000 x25: 0000000000000000 x24: ffff0000019df6b0 [  103.172271] x23: ffff0000019df6b8 x22: ffff0000019df410 x21: ffff8000826ebc88 [  103.179397] x20: 000000000007d000 x19: ffff00000a3b3000 x18: 0000000000000000 [  103.186522] x17: 0000000000000000 x16: 0000000000000000 x15: 000001e8c35e1cde [  103.193647] x14: 0000000000000396 x13: 000000000000035c x12: 0000000000000000 [  103.200772] x11: 000000000000003a x10: 00000000000009c0 x9 : ffff8000826eba20 [  103.207897] x8 : ffff0000090b6d20 x7 : ffff00007728c180 x6 : ffff00007728c100 [  103.215022] x5 : 0000000000000001 x4 : ffff000000508a50 x3 : ffff7ffff6146000 [  103.222147] x2 : 0000000000000000 x1 : e300b4173ee6b200 x0 : 0000000000000000 [  103.229274] Call trace: [  103.231714]  k3_cppi_desc_pool_destroy\u002B0xa0/0xa8 [k3_cppi_desc_pool] (P) [  103.238408]  am65_cpsw_nuss_free_rx_chns\u002B0x28/0x4c [ti_am65_cpsw_nuss] [  103.244942]  devm_action_release\u002B0x14/0x20 [  103.249040]  release_nodes\u002B0x3c/0x68 [  103.252610]  devres_release_all\u002B0x8c/0xdc [  103.256614]  device_unbind_cleanup\u002B0x18/0x60 [  103.260876]  device_release_driver_internal\u002B0xf8/0x178 [  103.266004]  driver_detach\u002B0x50/0x9c [  103.269571]  bus_remove_driver\u002B0x6c/0xbc [  103.273485]  driver_unregister\u002B0x30/0x60 [  103.277401]  platform_driver_unregister\u002B0x14/0x20 [  103.282096]  am65_cpsw_nuss_driver_exit\u002B0x18/0xff4 [ti_am65_cpsw_nuss] [  103.288620]  __arm64_sys_delete_module\u002B0x17c/0x25c [  103.293404]  invoke_syscall\u002B0x44/0x100 [  103.297149]  el0_svc_common.constprop.0\u002B0xc0/0xe0 [  103.301845]  do_el0_svc\u002B0x1c/0x28 [  103.305155]  el0_svc\u002B0x28/0x98 ---truncated---",
  "published": "2025-06-18T10:15:36Z",
  "severity": "Moderate",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00229,
  "epssPercentile": 0.13773,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-38042",
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.115-2",
      "fix": "DEBIAN-CVE-2025-38042",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-38042",
      "released": "2025-06-18T10:15:36Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.16.3-1",
      "fix": "DEBIAN-CVE-2025-38042",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-38042",
      "released": "2025-06-18T10:15:36Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T19:38:12Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}