{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-39956","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-04-16T07:20:57.149Z","datePublished":"2025-10-09T09:47:34.253Z","dateUpdated":"2026-05-11T21:39:40.583Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:39:40.583Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nigc: don't fail igc_probe() on LED setup error\n\nWhen igc_led_setup() fails, igc_probe() fails and triggers kernel panic\nin free_netdev() since unregister_netdev() is not called. [1]\nThis behavior can be tested using fault-injection framework, especially\nthe failslab feature. [2]\n\nSince LED support is not mandatory, treat LED setup failures as\nnon-fatal and continue probe with a warning message, consequently\navoiding the kernel panic.\n\n[1]\n kernel BUG at net/core/dev.c:12047!\n Oops: invalid opcode: 0000 [#1] SMP NOPTI\n CPU: 0 UID: 0 PID: 937 Comm: repro-igc-led-e Not tainted 6.17.0-rc4-enjuk-tnguy-00865-gc4940196ab02 #64 PREEMPT(voluntary)\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\n RIP: 0010:free_netdev+0x278/0x2b0\n [...]\n Call Trace:\n  <TASK>\n  igc_probe+0x370/0x910\n  local_pci_probe+0x3a/0x80\n  pci_device_probe+0xd1/0x200\n [...]\n\n[2]\n #!/bin/bash -ex\n\n FAILSLAB_PATH=/sys/kernel/debug/failslab/\n DEVICE=0000:00:05.0\n START_ADDR=$(grep \" igc_led_setup\" /proc/kallsyms \\\n         | awk '{printf(\"0x%s\", $1)}')\n END_ADDR=$(printf \"0x%x\" $((START_ADDR + 0x100)))\n\n echo $START_ADDR > $FAILSLAB_PATH/require-start\n echo $END_ADDR > $FAILSLAB_PATH/require-end\n echo 1 > $FAILSLAB_PATH/times\n echo 100 > $FAILSLAB_PATH/probability\n echo N > $FAILSLAB_PATH/ignore-gfp-wait\n\n echo $DEVICE > /sys/bus/pci/drivers/igc/bind"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/intel/igc/igc.h","drivers/net/ethernet/intel/igc/igc_main.c"],"versions":[{"version":"ea578703b03d5d651b091c39f717dc829155b520","lessThan":"bec504867acc7315de9cd96ef9161fa52a25abe8","status":"affected","versionType":"git"},{"version":"ea578703b03d5d651b091c39f717dc829155b520","lessThan":"f05e82d8553232cef150a6dbb70ed67d162abb2b","status":"affected","versionType":"git"},{"version":"ea578703b03d5d651b091c39f717dc829155b520","lessThan":"528eb4e19ec0df30d0c9ae4074ce945667dde919","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/intel/igc/igc.h","drivers/net/ethernet/intel/igc/igc_main.c"],"versions":[{"version":"6.9","status":"affected"},{"version":"0","lessThan":"6.9","status":"unaffected","versionType":"semver"},{"version":"6.12.49","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.16.9","lessThanOrEqual":"6.16.*","status":"unaffected","versionType":"semver"},{"version":"6.17","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.9","versionEndExcluding":"6.12.49"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.9","versionEndExcluding":"6.16.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.9","versionEndExcluding":"6.17"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/bec504867acc7315de9cd96ef9161fa52a25abe8"},{"url":"https://git.kernel.org/stable/c/f05e82d8553232cef150a6dbb70ed67d162abb2b"},{"url":"https://git.kernel.org/stable/c/528eb4e19ec0df30d0c9ae4074ce945667dde919"}],"title":"igc: don't fail igc_probe() on LED setup error","x_generator":{"engine":"bippy-1.2.0"}}}}