{"id":"DEBIAN-CVE-2023-53234","details":"In the Linux kernel, the following vulnerability has been resolved:  watchdog: Fix kmemleak in watchdog_cdev_register  kmemleak reports memory leaks in watchdog_dev_register, as follows: unreferenced object 0xffff888116233000 (size 2048):   comm \"\"modprobe\"\", pid 28147, jiffies 4353426116 (age 61.741s)   hex dump (first 32 bytes):     80 fa b9 05 81 88 ff ff 08 30 23 16 81 88 ff ff  .........0#.....     08 30 23 16 81 88 ff ff 00 00 00 00 00 00 00 00  .0#.............   backtrace:     [\u003c000000007f001ffd\u003e] __kmem_cache_alloc_node+0x157/0x220     [\u003c000000006a389304\u003e] kmalloc_trace+0x21/0x110     [\u003c000000008d640eea\u003e] watchdog_dev_register+0x4e/0x780 [watchdog]     [\u003c0000000053c9f248\u003e] __watchdog_register_device+0x4f0/0x680 [watchdog]     [\u003c00000000b2979824\u003e] watchdog_register_device+0xd2/0x110 [watchdog]     [\u003c000000001f730178\u003e] 0xffffffffc10880ae     [\u003c000000007a1a8bcc\u003e] do_one_initcall+0xcb/0x4d0     [\u003c00000000b98be325\u003e] do_init_module+0x1ca/0x5f0     [\u003c0000000046d08e7c\u003e] load_module+0x6133/0x70f0     ...  unreferenced object 0xffff888105b9fa80 (size 16):   comm \"\"modprobe\"\", pid 28147, jiffies 4353426116 (age 61.741s)   hex dump (first 16 bytes):     77 61 74 63 68 64 6f 67 31 00 b9 05 81 88 ff ff  watchdog1.......   backtrace:     [\u003c000000007f001ffd\u003e] __kmem_cache_alloc_node+0x157/0x220     [\u003c00000000486ab89b\u003e] __kmalloc_node_track_caller+0x44/0x1b0     [\u003c000000005a39aab0\u003e] kvasprintf+0xb5/0x140     [\u003c0000000024806f85\u003e] kvasprintf_const+0x55/0x180     [\u003c000000009276cb7f\u003e] kobject_set_name_vargs+0x56/0x150     [\u003c00000000a92e820b\u003e] dev_set_name+0xab/0xe0     [\u003c00000000cec812c6\u003e] watchdog_dev_register+0x285/0x780 [watchdog]     [\u003c0000000053c9f248\u003e] __watchdog_register_device+0x4f0/0x680 [watchdog]     [\u003c00000000b2979824\u003e] watchdog_register_device+0xd2/0x110 [watchdog]     [\u003c000000001f730178\u003e] 0xffffffffc10880ae     [\u003c000000007a1a8bcc\u003e] do_one_initcall+0xcb/0x4d0     [\u003c00000000b98be325\u003e] do_init_module+0x1ca/0x5f0     [\u003c0000000046d08e7c\u003e] load_module+0x6133/0x70f0     ...  The reason is that put_device is not be called if cdev_device_add fails and wdd-\u003eid != 0.  watchdog_cdev_register   wd_data = kzalloc                             [1]   err = dev_set_name                            [2]   ..   err = cdev_device_add   if (err) {     if (wdd-\u003eid == 0) {  // wdd-\u003eid != 0       ..     }     return err;  // [1],[2] would be leaked  To fix it, call put_device in all wdd-\u003eid cases.","modified":"2026-09-15T09:02:50.792764464Z","published":"2025-09-15T15:15:50.420Z","upstream":["CVE-2023-53234"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2023-53234"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.20-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-53234.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.20-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-53234.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.20-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-53234.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}