{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-50477","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-10-04T15:13:33.467Z","datePublished":"2025-10-04T15:16:37.654Z","dateUpdated":"2026-05-11T19:20:15.051Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T19:20:15.051Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nrtc: class: Fix potential memleak in devm_rtc_allocate_device()\n\ndevm_rtc_allocate_device() will alloc a rtc_device first, and then run\ndev_set_name(). If dev_set_name() failed, the rtc_device will memleak.\nMove devm_add_action_or_reset() in front of dev_set_name() to prevent\nmemleak.\n\nunreferenced object 0xffff888110a53000 (size 2048):\n  comm \"python3\", pid 470, jiffies 4296078308 (age 58.882s)\n  hex dump (first 32 bytes):\n    00 00 00 00 00 00 00 00 08 30 a5 10 81 88 ff ff  .........0......\n    08 30 a5 10 81 88 ff ff 00 00 00 00 00 00 00 00  .0..............\n  backtrace:\n    [<000000004aac0364>] kmalloc_trace+0x21/0x110\n    [<000000000ff02202>] devm_rtc_allocate_device+0xd4/0x400\n    [<000000001bdf5639>] devm_rtc_device_register+0x1a/0x80\n    [<00000000351bf81c>] rx4581_probe+0xdd/0x110 [rtc_rx4581]\n    [<00000000f0eba0ae>] spi_probe+0xde/0x130\n    [<00000000bff89ee8>] really_probe+0x175/0x3f0\n    [<00000000128e8d84>] __driver_probe_device+0xe6/0x170\n    [<00000000ee5bf913>] device_driver_attach+0x32/0x80\n    [<00000000f3f28f92>] bind_store+0x10b/0x1a0\n    [<000000009ff812d8>] drv_attr_store+0x49/0x70\n    [<000000008139c323>] sysfs_kf_write+0x8d/0xb0\n    [<00000000b6146e01>] kernfs_fop_write_iter+0x214/0x2d0\n    [<00000000ecbe3895>] vfs_write+0x61a/0x7d0\n    [<00000000aa2196ea>] ksys_write+0xc8/0x190\n    [<0000000046a600f5>] do_syscall_64+0x37/0x90\n    [<00000000541a336f>] entry_SYSCALL_64_after_hwframe+0x63/0xcd"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/rtc/class.c"],"versions":[{"version":"24d23181e43d72ca692a479e70dfe5b0b5dd33f1","lessThan":"0bcfc8fd3e596994f527b46730579428b3a4fa5f","status":"affected","versionType":"git"},{"version":"24d23181e43d72ca692a479e70dfe5b0b5dd33f1","lessThan":"59457a0f079eae19aaf322b3cc1c8ba66f55c5f3","status":"affected","versionType":"git"},{"version":"24d23181e43d72ca692a479e70dfe5b0b5dd33f1","lessThan":"60da73808298ff2cfa9f165d55eb3d7aa7078601","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/rtc/class.c"],"versions":[{"version":"5.16","status":"affected"},{"version":"0","lessThan":"5.16","status":"unaffected","versionType":"semver"},{"version":"6.0.16","lessThanOrEqual":"6.0.*","status":"unaffected","versionType":"semver"},{"version":"6.1.2","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.2","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":"5.16","versionEndExcluding":"6.0.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.1.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.2"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/0bcfc8fd3e596994f527b46730579428b3a4fa5f"},{"url":"https://git.kernel.org/stable/c/59457a0f079eae19aaf322b3cc1c8ba66f55c5f3"},{"url":"https://git.kernel.org/stable/c/60da73808298ff2cfa9f165d55eb3d7aa7078601"}],"title":"rtc: class: Fix potential memleak in devm_rtc_allocate_device()","x_generator":{"engine":"bippy-1.2.0"}}}}