CVE-2025-37911 — bnxt_en: Fix out-of-bound memcpy() during ethtool -w

Affected: Linux

In the Linux kernel, the following vulnerability has been resolved:

bnxt_en: Fix out-of-bound memcpy() during ethtool -w

When retrieving the FW coredump using ethtool, it can sometimes cause memory corruption:

BUG: KFENCE: memory corruption in __bnxt_get_coredump+0x3ef/0x670 [bnxt_en] Corrupted memory at 0x000000008f0f30e8 [ ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ] (in kfence-#45): __bnxt_get_coredump+0x3ef/0x670 [bnxt_en] ethtool_get_dump_data+0xdc/0x1a0 __dev_ethtool+0xa1e/0x1af0 dev_ethtool+0xa8/0x170 dev_ioctl+0x1b5/0x580 sock_do_ioctl+0xab/0xf0 sock_ioctl+0x1ce/0x2e0 __x64_sys_ioctl+0x87/0xc0 do_syscall_64+0x5c/0xf0 entry_SYSCALL_64_after_hwframe+0x78/0x80

...

This happens when copying the coredump segment list in bnxt_hwrm_dbg_dma_data() with the HWRM_DBG_COREDUMP_LIST FW command. The info->dest_buf buffer is allocated based on the number of coredump segments returned by the FW. The segment list is then DMA'ed by the FW and the length of the DMA is returned by FW. The driver then copies this DMA'ed segment list to info->dest_buf.

In some cases, this DMA length may exceed the info->dest_buf length and cause the above BUG condition. Fix it by capping the copy length to not exceed the length of info->dest_buf. The extra DMA data contains no useful information.

This code path is shared for the HWRM_DBG_COREDUMP_LIST and the HWRM_DBG_COREDUMP_RETRIEVE FW commands. The buffering is different for these 2 FW commands. To simplify the logic, we need to move the line to ad…

USN-7649-1 — linux, linux-gcp, linux-raspi, linux-realtime vulnerabilities

Affected: Ubuntu:25.04: linux, Ubuntu:25.04: linux-gcp, Ubuntu:25.04: linux-raspi, Ubuntu:25.04: linux-realtime

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - PA-RISC architecture; - PowerPC architecture; - S390 architecture; - x86 architecture; - Compute Acceleration Framework; - Ublk userspace block driver; - Bluetooth drivers; - ARM SCMI message protocol; - GPU drivers; - IOMMU subsystem; - IRQ chip drivers; - Multiple devices driver; - Network drivers; - PCI subsystem; - PTP clock framework; - SPI subsystem; - BTRFS file system; - SMB network file system; - eXpress Data Path; - Universal MIDI packet (UMP) support module; - Tracing infrastructure; - Memory management; - IPv4 networking; - IPv6 networking; - Network traffic control; - AMD SoC Alsa drivers; - SoC Audio generic drivers; (CVE-2025-37898, CVE-2025-37990, CVE-2025-37974, CVE-2025-37991, CVE-2025-37894, CVE-2025-37906, CVE-2025-37896, CVE-2025-37909, CVE-2025-37923, CVE-2025-37899, CVE-2025-37901, CVE-2025-37914, CVE-2025-38216, CVE-2025-37931, CVE-2025-37928, CVE-2025-37916, CVE-2025-37908, CVE-2025-37915, CVE-2025-37917, CVE-2025-37921, CVE-2025-37903, CVE-2025-37922, CVE-2025-37895, CVE-2025-37936, CVE-2025-37933, CVE-2025-37891, CVE-2025-37926, CVE-2025-37912, CVE-2025-37920, CVE-2025-37924, CVE-2025-37927, CVE-2025-37946, CVE-2025-37907, CVE-2025-37930, CVE-2025-37911, CVE-2025-37905, CVE-2025-37900, CVE-202…

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CVE-2025-37911 — bnxt_en: Fix out-of-bound memcpy() during ethtool -w

USN-7649-1 — linux, linux-gcp, linux-raspi, linux-realtime vulnerabilities