CVE-2025-38042

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_chnThe user of k3_udma_glue_reset_rx_chn() e.g. ti_am65_cpsw_nuss canrun on multiple platforms having different DMA architectures.On some platforms there can be one FDQ for all flows in the RX channelwhile 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 ofk3_udma_glue_reset_rx_chn().Instead of relying on the user to provide this information, infer itbased on DMA architecture during k3_udma_glue_request_rx_chn() and save itin an internal flag single_fdq. Use that flag atk3_udma_glue_reset_rx_chn() to deicide if the FDQ needsto be cleared for every flow or just for flow 0.Fixes the below issue on ti_am65_cpsw_nuss driver on AM62-SK.> ip link set eth1 down> ip link set eth0 down> ethtool -L eth0 rx 8> ip link set eth0 up> 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+0xa0/0xa8 [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_mcasp 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 rfkill 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+0xa0/0xa8 [k3_cppi_desc_pool][ 103.148007] lr : k3_cppi_desc_pool_destroy+0xa0/0xa8 [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+0xa0/0xa8 [k3_cppi_desc_pool] (P)[ 103.238408] am65_cpsw_nuss_free_rx_chns+0x28/0x4c [ti_am65_cpsw_nuss][ 103.244942] devm_action_release+0x14/0x20[ 103.249040] release_nodes+0x3c/0x68[ 103.252610] devres_release_all+0x8c/0xdc[ 103.256614] device_unbind_cleanup+0x18/0x60[ 103.260876] device_release_driver_internal+0xf8/0x178[ 103.266004] driver_detach+0x50/0x9c[ 103.269571] bus_remove_driver+0x6c/0xbc[ 103.273485] driver_unregister+0x30/0x60[ 103.277401] platform_driver_unregister+0x14/0x20[ 103.282096] am65_cpsw_nuss_driver_exit+0x18/0xff4 [ti_am65_cpsw_nuss][ 103.288620] __arm64_sys_delete_module+0x17c/0x25c[ 103.293404] invoke_syscall+0x44/0x100[ 103.297149] el0_svc_common.constprop.0+0xc0/0xe0[ 103.301845] do_el0_svc+0x1c/0x28[ 103.305155] el0_svc+0x28/0x98---truncated---

Risk Information

Associated Vulnerability

Patch Details

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234