{"id":"DEBIAN-CVE-2022-49256","details":"In the Linux kernel, the following vulnerability has been resolved:  watch_queue: Actually free the watch  free_watch() does everything barring actually freeing the watch object.  Fix this by adding the missing kfree.  kmemleak produces a report something like the following.  Note that as an address can be seen in the first word, the watch would appear to have gone through call_rcu().  BUG: memory leak unreferenced object 0xffff88810ce4a200 (size 96):   comm \"syz-executor352\", pid 3605, jiffies 4294947473 (age 13.720s)   hex dump (first 32 bytes):     e0 82 48 0d 81 88 ff ff 00 00 00 00 00 00 00 00  ..H.............     80 a2 e4 0c 81 88 ff ff 00 00 00 00 00 00 00 00  ................   backtrace:     [\u003cffffffff8214e6cc\u003e] kmalloc include/linux/slab.h:581 [inline]     [\u003cffffffff8214e6cc\u003e] kzalloc include/linux/slab.h:714 [inline]     [\u003cffffffff8214e6cc\u003e] keyctl_watch_key+0xec/0x2e0 security/keys/keyctl.c:1800     [\u003cffffffff8214ec84\u003e] __do_sys_keyctl+0x3c4/0x490 security/keys/keyctl.c:2016     [\u003cffffffff84493a25\u003e] do_syscall_x64 arch/x86/entry/common.c:50 [inline]     [\u003cffffffff84493a25\u003e] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80     [\u003cffffffff84600068\u003e] entry_SYSCALL_64_after_hwframe+0x44/0xae","modified":"2026-09-01T16:05:30.344518801Z","published":"2025-02-26T07:01:02.497Z","upstream":["CVE-2022-49256"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2022-49256"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.17.3-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49256.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.17.3-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49256.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.17.3-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49256.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"}]}