cbcvebase.
CVE-2025-21799
published 2025-02-27

CVE-2025-21799: In the Linux kernel, the following vulnerability has been resolved: net: ethernet: ti: am65-cpsw: fix freeing IRQ in am65_cpsw_nuss_remove_tx_chns() When…

PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.22%
12.9th percentile
In the Linux kernel, the following vulnerability has been resolved: net: ethernet: ti: am65-cpsw: fix freeing IRQ in am65_cpsw_nuss_remove_tx_chns() When getting the IRQ we use k3_udma_glue_tx_get_irq() which returns negative error value on error. So not NULL check is not sufficient to deteremine if IRQ is valid. Check that IRQ is greater then zero to ensure it is valid. There is no issue at probe time but at runtime user can invoke .set_channels which results in the following call chain. am65_cpsw_set_channels() am65_cpsw_nuss_update_tx_rx_chns() am65_cpsw_nuss_remove_tx_chns() am65_cpsw_nuss_init_tx_chns() At this point if am65_cpsw_nuss_init_tx_chns() fails due to k3_udma_glue_tx_get_irq() then tx_chn->irq will be set to a negative value. Then, at subsequent .set_channels with higher channel count we will attempt to free an invalid IRQ in am65_cpsw_nuss_remove_tx_chns() leading to a kernel warning. The issue is present in the original commit that introduced this driver, although there, am65_cpsw_nuss_update_tx_rx_chns() existed as am65_cpsw_nuss_update_tx_chns().

Affected

22 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.129-1 (bookworm)linux 6.1.129-1 (bookworm)
debianlinux-6.1< linux 6.1.129-1 (bookworm)linux 6.1.129-1 (bookworm)
linuxlinux
linuxlinux>= 93a76530316a3d8cc2d82c3deca48424fee92100 < 321990fdf4f1bb64e818c7140688bf33d129e48d321990fdf4f1bb64e818c7140688bf33d129e48d
linuxlinux>= 93a76530316a3d8cc2d82c3deca48424fee92100 < ed8c0300f302338c36edb06bca99051e5be6fb2fed8c0300f302338c36edb06bca99051e5be6fb2f
linuxlinux>= 93a76530316a3d8cc2d82c3deca48424fee92100 < aea5cca681d268f794fa2385f9ec26a5cce025cdaea5cca681d268f794fa2385f9ec26a5cce025cd
linuxlinux>= 93a76530316a3d8cc2d82c3deca48424fee92100 < 88fd5db8c0073bd91d18391feb5741aeb0a2b47588fd5db8c0073bd91d18391feb5741aeb0a2b475
linuxlinux>= 93a76530316a3d8cc2d82c3deca48424fee92100 < 8448c87b3af68bebca21e3136913f7f77e3635158448c87b3af68bebca21e3136913f7f77e363515
linuxlinux>= 93a76530316a3d8cc2d82c3deca48424fee92100 < 8aae91ae1c65782a169ec070e023d4d269e5d6e68aae91ae1c65782a169ec070e023d4d269e5d6e6
linuxlinux>= 93a76530316a3d8cc2d82c3deca48424fee92100 < 4395a44acb15850e492dd1de9ec4b6479d96bc804395a44acb15850e492dd1de9ec4b6479d96bc80
linuxlinux_kernel>= 0 < 5.10.237-15.10.237-1
linuxlinux_kernel>= 0 < 6.1.129-16.1.129-1
linuxlinux_kernel>= 0 < 6.12.13-16.12.13-1
linuxlinux_kernel>= 0 < 6.12.13-16.12.13-1
linuxlinux_kernel>= 0 < 5.15.0-140.1505.15.0-140.150
linuxlinux_kernel>= 0 < 6.8.0-64.676.8.0-64.67
linuxlinux_kernel>= 5.11 < 5.15.1795.15.179
linuxlinux_kernel>= 5.16 < 6.1.1296.1.129
linuxlinux_kernel>= 5.7 < 5.10.2355.10.235
linuxlinux_kernel>= 6.13 < 6.13.26.13.2
linuxlinux_kernel>= 6.2 < 6.6.766.6.76
linuxlinux_kernel>= 6.7 < 6.12.136.12.13

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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