CVE ID : CVE-2025-39956<\/p>\n
Published : Oct. 9, 2025, 10:15 a.m. | 22\u00a0minutes ago<\/p>\n
Description : In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
igc: don’t fail igc_probe() on LED setup error<\/p>\n
When 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
Since LED support is not mandatory, treat LED setup failures as
\nnon-fatal and continue probe with a warning message, consequently
\navoiding the kernel panic.<\/p>\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:<\/p>\n
igc_probe+0x370\/0x910
\n local_pci_probe+0x3a\/0x80
\n pci_device_probe+0xd1\/0x200
\n […]\n[2]\n #!\/bin\/bash -ex<\/p>\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)))<\/p>\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<\/p>\n
echo $DEVICE > \/sys\/bus\/pci\/drivers\/igc\/bind<\/p>\n
Severity: 0.0 | NA<\/p>\n
Visit the link for more details, such as CVSS details, affected products, timeline, and more…\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"
CVE ID : CVE-2025-39956 Published : Oct. 9, 2025, 10:15 a.m. | 22\u00a0minutes ago Description : In the Linux kernel, the following vulnerability has been resolved: igc: don’t fail igc_probe() on LED setup error When igc_led_setup() fails, igc_probe() fails and triggers kernel panic in free_netdev() since unregister_netdev() is not called. [1] This behavior can be …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-71283","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/71283","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=71283"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/71283\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=71283"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=71283"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=71283"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}