{"id":"CVE-2026-31563","summary":"net: macb: Use dev_consume_skb_any() to free TX SKBs","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: macb: Use dev_consume_skb_any() to free TX SKBs\n\nThe napi_consume_skb() function is not intended to be called in an IRQ\ndisabled context. However, after commit 6bc8a5098bf4 (\"net: macb: Fix\ntx_ptr_lock locking\"), the freeing of TX SKBs is performed with IRQs\ndisabled. To resolve the following call trace, use dev_consume_skb_any()\nfor freeing TX SKBs:\n   WARNING: kernel/softirq.c:430 at __local_bh_enable_ip+0x174/0x188, CPU#0: ksoftirqd/0/15\n   Modules linked in:\n   CPU: 0 UID: 0 PID: 15 Comm: ksoftirqd/0 Not tainted 7.0.0-rc4-next-20260319-yocto-standard-dirty #37 PREEMPT\n   Hardware name: ZynqMP ZCU102 Rev1.1 (DT)\n   pstate: 200000c5 (nzCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n   pc : __local_bh_enable_ip+0x174/0x188\n   lr : local_bh_enable+0x24/0x38\n   sp : ffff800082b3bb10\n   x29: ffff800082b3bb10 x28: ffff0008031f3c00 x27: 000000000011ede0\n   x26: ffff000800a7ff00 x25: ffff800083937ce8 x24: 0000000000017a80\n   x23: ffff000803243a78 x22: 0000000000000040 x21: 0000000000000000\n   x20: ffff000800394c80 x19: 0000000000000200 x18: 0000000000000001\n   x17: 0000000000000001 x16: ffff000803240000 x15: 0000000000000000\n   x14: ffffffffffffffff x13: 0000000000000028 x12: ffff000800395650\n   x11: ffff8000821d1528 x10: ffff800081c2bc08 x9 : ffff800081c1e258\n   x8 : 0000000100000301 x7 : ffff8000810426ec x6 : 0000000000000000\n   x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000000\n   x2 : 0000000000000008 x1 : 0000000000000200 x0 : ffff8000810428dc\n   Call trace:\n    __local_bh_enable_ip+0x174/0x188 (P)\n    local_bh_enable+0x24/0x38\n    skb_attempt_defer_free+0x190/0x1d8\n    napi_consume_skb+0x58/0x108\n    macb_tx_poll+0x1a4/0x558\n    __napi_poll+0x50/0x198\n    net_rx_action+0x1f4/0x3d8\n    handle_softirqs+0x16c/0x560\n    run_ksoftirqd+0x44/0x80\n    smpboot_thread_fn+0x1d8/0x338\n    kthread+0x120/0x150\n    ret_from_fork+0x10/0x20\n   irq event stamp: 29751\n   hardirqs last  enabled at (29750): [\u003cffff8000813be184\u003e] _raw_spin_unlock_irqrestore+0x44/0x88\n   hardirqs last disabled at (29751): [\u003cffff8000813bdf60\u003e] _raw_spin_lock_irqsave+0x38/0x98\n   softirqs last  enabled at (29150): [\u003cffff8000800f1aec\u003e] handle_softirqs+0x504/0x560\n   softirqs last disabled at (29153): [\u003cffff8000800f2fec\u003e] run_ksoftirqd+0x44/0x80","modified":"2026-07-08T08:05:02.663528098Z","published":"2026-04-24T14:35:44.610Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31563.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/647b8a2fe474474704110db6bd07f7a139e621eb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/78c8b090a3d5c1689dc989861b0163180db2b3f8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/92e7081f0c79d9073087e54bab745bb184192c2e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/984350b37372f79f71d4f0a5264c640e40daf9ce"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ca4d05afb4683d685bb2c6fccae4386c478f524a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f4bc91398b579730284328322365afa77a9d568f"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31563.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-31563"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"aeeafeb29b1b270302a9a85a13f7d70a68a3b9e6"},{"fixed":"92e7081f0c79d9073087e54bab745bb184192c2e"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"5430388a81113e62a2d48b5d7dc1e76231908ebf"},{"fixed":"78c8b090a3d5c1689dc989861b0163180db2b3f8"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"7db8aa3fc4ed0a2928246747b2514b0741a8187e"},{"fixed":"984350b37372f79f71d4f0a5264c640e40daf9ce"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6bc8a5098bf4a365c4086a4a4130bfab10a58260"},{"fixed":"f4bc91398b579730284328322365afa77a9d568f"},{"fixed":"ca4d05afb4683d685bb2c6fccae4386c478f524a"},{"fixed":"647b8a2fe474474704110db6bd07f7a139e621eb"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0"},{"last_affected":"a4cb0a15ab8e6d06c08229a2c7bdbe1f2454473f"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.1.151"},{"fixed":"6.1.168"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.6.105"},{"fixed":"6.6.131"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.12.46"},{"fixed":"6.12.80"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6.16.6"},{"fixed":"6.17"}]}],"versions":["v6.1.167","v6.1.166","v6.1.165","v6.1.164","v6.1.163","v6.1.162","v6.1.161","v6.1.160","v6.1.159","v6.1.158","v6.1.157","v6.1.156","v6.1.155","v6.1.154","v6.1.153","v6.1.152","v6.1.151","v6.6.130","v6.6.129","v6.6.128","v6.6.127","v6.6.126","v6.6.125","v6.6.124","v6.6.123","v6.6.122","v6.6.121","v6.6.120","v6.6.119","v6.6.118","v6.6.117","v6.6.116","v6.6.115","v6.6.114","v6.6.113","v6.6.112","v6.6.111","v6.6.110","v6.6.109","v6.6.108","v6.6.107","v6.6.106","v6.6.105","v6.12.79","v6.12.78","v6.12.77","v6.12.76","v6.12.75","v6.12.74","v6.12.73","v6.12.72","v6.12.71","v6.12.70","v6.12.69","v6.12.68","v6.12.67","v6.12.66","v6.12.65","v6.12.64","v6.12.63","v6.12.62","v6.12.61","v6.12.60","v6.12.59","v6.12.58","v6.12.57","v6.12.56","v6.12.55","v6.12.54","v6.12.53","v6.12.52","v6.12.51","v6.12.50","v6.12.49","v6.12.48","v6.12.47","v6.12.46","v6.16","v6.16.5","v6.16.4","v6.16.3","v6.16.2","v6.16.1","v6.16-rc6","v6.16-rc1","v6.16-rc4","v6.16-rc2","v6.16-rc5","v6.16-rc7","v6.16-rc3","v6.14-rc3","v6.15","v6.15-rc1","v6.15-rc6","v6.15-rc3","v6.15-rc2","v6.15-rc7","v6.15-rc4","v6.15-rc5","v6.14","v6.14-rc1","v6.14-rc7","v6.14-rc6","v6.14-rc4","v6.14-rc5","v6.14-rc2","v6.13","v6.13-rc1","v6.13-rc6","v6.13-rc7","v6.13-rc2","v6.13-rc5","v6.13-rc3","v6.12-rc1","v6.13-rc4","v6.12","v6.12-rc7","v6.12-rc3","v6.12-rc4","v6.12-rc6","v6.12-rc5","v6.12-rc2","v6.11-rc1","v6.11-rc5","v6.11","v6.11-rc7","v6.10-rc1","v6.11-rc6","v6.11-rc3","v6.11-rc4","v6.11-rc2","v6.10","v6.10-rc6","v6.10-rc7","v6.10-rc3","v6.9-rc1","v6.10-rc5","v6.10-rc2","v6.10-rc4","v6.9","v6.9-rc6","v6.9-rc7","v6.9-rc5","v6.9-rc3","v6.9-rc2","v6.8","v6.9-rc4","v6.8-rc1","v6.7-rc1","v6.8-rc7","v6.8-rc6","v6.8-rc5","v6.8-rc4","v6.8-rc3","v6.8-rc2","v6.7","v6.7-rc3","v6.7-rc8","v6.7-rc7","v6.7-rc6","v6.7-rc2","v6.7-rc4","v6.7-rc5","v6.6","v6.6-rc1","v6.6-rc5","v6.6-rc3","v6.6-rc7","v6.6-rc6","v6.6-rc4","v6.6-rc2","v6.5","v6.5-rc1","v6.5-rc2","v6.5-rc7","v6.5-rc4","v6.5-rc3","v6.5-rc6","v6.5-rc5","v6.4","v6.4-rc7","v6.4-rc1","v6.4-rc6","v6.4-rc5","v6.4-rc3","v6.4-rc4","v6.4-rc2","v6.3","v6.3-rc1","v6.3-rc7","v6.3-rc2","v6.3-rc3","v6.3-rc5","v6.3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