{"id":"CVE-2021-47372","state":"PUBLISHED","title":"net: macb: fix use after free on rmmod","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: macb: fix use after free on rmmod\n\nplat_dev->dev->platform_data is released by platform_device_unregister(),\nuse of pclk and hclk is a use-after-free. Since device unregister won't\nneed a clk device we adjust the function call sequence to fix this issue.\n\n[   31.261225] BUG: KASAN: use-after-free in macb_remove+0x77/0xc6 [macb_pci]\n[   31.275563] Freed by task 306:\n[   30.276782]  platform_device_release+0x25/0x80","publishedAt":"2024-05-21T15:03:37.135Z","updatedAt":"2026-05-11T13:53:25.943Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"83a77e9ec4150ee4acc635638f7dedd9da523a26","status":"affected","lessThan":"a7d521cc726f30b8e679a6f36d04b18a8ab3c536","versionType":"git"},{"version":"83a77e9ec4150ee4acc635638f7dedd9da523a26","status":"affected","lessThan":"46670fb832ee80943715df618632ca13c2e96f2b","versionType":"git"},{"version":"83a77e9ec4150ee4acc635638f7dedd9da523a26","status":"affected","lessThan":"1da750d1e2140ef43d64d17f301ff6f41b45541e","versionType":"git"},{"version":"83a77e9ec4150ee4acc635638f7dedd9da523a26","status":"affected","lessThan":"7721221e87d25c9840d9ca6b986dbdc410d5ce2b","versionType":"git"},{"version":"83a77e9ec4150ee4acc635638f7dedd9da523a26","status":"affected","lessThan":"4ad6f2d23b0f6ac0d3e5f3102a4256d1c86c90f5","versionType":"git"},{"version":"83a77e9ec4150ee4acc635638f7dedd9da523a26","status":"affected","lessThan":"d82d5303c4c539db86588ffb5dc5b26c3f1513e8","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/cadence/macb_pci.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.10","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.10","versionType":"semver"},{"version":"4.14.249","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.209","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.150","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.70","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.14.9","status":"unaffected","lessThanOrEqual":"5.14.*","versionType":"semver"},{"version":"5.15","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/cadence/macb_pci.c"]}],"references":["https://git.kernel.org/stable/c/a7d521cc726f30b8e679a6f36d04b18a8ab3c536","https://git.kernel.org/stable/c/46670fb832ee80943715df618632ca13c2e96f2b","https://git.kernel.org/stable/c/1da750d1e2140ef43d64d17f301ff6f41b45541e","https://git.kernel.org/stable/c/7721221e87d25c9840d9ca6b986dbdc410d5ce2b","https://git.kernel.org/stable/c/4ad6f2d23b0f6ac0d3e5f3102a4256d1c86c90f5","https://git.kernel.org/stable/c/d82d5303c4c539db86588ffb5dc5b26c3f1513e8"],"weaknesses":[],"ingestedAt":"2026-10-29T19:49:19.404Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/47xxx/CVE-2021-47372.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2021-47372","state":"PUBLISHED","datePublished":"2024-05-21T15:03:37.135Z","dateUpdated":"2026-05-11T13:53:25.943Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-05-21T14:58:30.810Z"},"containers":{"cna":{"title":"net: macb: fix use after free on rmmod","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: macb: fix use after free on rmmod\n\nplat_dev->dev->platform_data is released by platform_device_unregister(),\nuse of pclk and hclk is a use-after-free. Since device unregister won't\nneed a clk device we adjust the function call sequence to fix this issue.\n\n[   31.261225] BUG: KASAN: use-after-free in macb_remove+0x77/0xc6 [macb_pci]\n[   31.275563] Freed by task 306:\n[   30.276782]  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