{"id":"CVE-2026-31563","revision":"48ecee7e9897499ebc6240dde8a6f88a","records":[{"revision":"48ecee7e9897499ebc6240dde8a6f88a","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-31563","aliases":[],"title":"net: macb: Use dev_consume_skb_any() to free TX SKBs","description":"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): [] _raw_spin_unlock_irqrestore+0x44/0x88\n hardirqs last disabled at (29751): [] _raw_spin_lock_irqsave+0x38/0x98\n softirqs last enabled at (29150): [] handle_softirqs+0x504/0x560\n softirqs last disabled at (29153): [] run_ksoftirqd+0x44/0x80","state":0,"publishedAt":"2026-04-24T14:35:44.61+00:00","modifiedAt":"2026-10-15T01:17:01.889+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"unaffected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"drivers/net/ethernet/cadence/macb_main.c\"\n ],\n \"versions\": [\n {\n \"version\": \"aeeafeb29b1b270302a9a85a13f7d70a68a3b9e6\",\n \"lessThan\": \"92e7081f0c79d9073087e54bab745bb184192c2e\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"5430388a81113e62a2d48b5d7dc1e76231908ebf\",\n \"lessThan\": \"78c8b090a3d5c1689dc989861b0163180db2b3f8\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"7db8aa3fc4ed0a2928246747b2514b0741a8187e\",\n \"lessThan\": \"984350b37372f79f71d4f0a5264c640e40daf9ce\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"6bc8a5098bf4a365c4086a4a4130bfab10a58260\",\n \"lessThan\": \"f4bc91398b579730284328322365afa77a9d568f\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"6bc8a5098bf4a365c4086a4a4130bfab10a58260\",\n \"lessThan\": \"ca4d05afb4683d685bb2c6fccae4386c478f524a\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"6bc8a5098bf4a365c4086a4a4130bfab10a58260\",\n \"lessThan\": \"647b8a2fe474474704110db6bd07f7a139e621eb\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"a4cb0a15ab8e6d06c08229a2c7bdbe1f2454473f\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"6.1.151\",\n \"lessThan\": \"6.1.168\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.105\",\n \"lessThan\": \"6.6.131\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.46\",\n \"lessThan\": \"6.12.80\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.16.6\",\n \"lessThan\": \"6.17\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"affected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"drivers/net/ethernet/cadence/macb_main.c\"\n ],\n \"versions\": [\n {\n \"version\": \"6.17\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"6.17\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.168\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.131\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.80\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.18.21\",\n \"lessThanOrEqual\": \"6.18.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.19.11\",\n \"lessThanOrEqual\": \"6.19.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.0\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/92e7081f0c79d9073087e54bab745bb184192c2e","https://git.kernel.org/stable/c/78c8b090a3d5c1689dc989861b0163180db2b3f8","https://git.kernel.org/stable/c/984350b37372f79f71d4f0a5264c640e40daf9ce","https://git.kernel.org/stable/c/f4bc91398b579730284328322365afa77a9d568f","https://git.kernel.org/stable/c/ca4d05afb4683d685bb2c6fccae4386c478f524a","https://git.kernel.org/stable/c/647b8a2fe474474704110db6bd07f7a139e621eb"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-31563","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-31563","identifiers":["CVE-2026-31563"]},"retained":false,"historicalAffected":[]}],"coverage":[]}