{"id":"CVE-2022-49148","summary":"watch_queue: Free the page array when watch_queue is dismantled","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nwatch_queue: Free the page array when watch_queue is dismantled\n\nCommit 7ea1a0124b6d (\"watch_queue: Free the alloc bitmap when the\nwatch_queue is torn down\") took care of the bitmap, but not the page\narray.\n\n  BUG: memory leak\n  unreferenced object 0xffff88810d9bc140 (size 32):\n  comm \"syz-executor335\", pid 3603, jiffies 4294946994 (age 12.840s)\n  hex dump (first 32 bytes):\n    40 a7 40 04 00 ea ff ff 00 00 00 00 00 00 00 00  @.@.............\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n  backtrace:\n     kmalloc_array include/linux/slab.h:621 [inline]\n     kcalloc include/linux/slab.h:652 [inline]\n     watch_queue_set_size+0x12f/0x2e0 kernel/watch_queue.c:251\n     pipe_ioctl+0x82/0x140 fs/pipe.c:632\n     vfs_ioctl fs/ioctl.c:51 [inline]\n     __do_sys_ioctl fs/ioctl.c:874 [inline]\n     __se_sys_ioctl fs/ioctl.c:860 [inline]\n     __x64_sys_ioctl+0xfc/0x140 fs/ioctl.c:860\n     do_syscall_x64 arch/x86/entry/common.c:50 [inline]","modified":"2026-04-02T08:27:20.560650Z","published":"2025-02-26T01:55:15.872Z","related":["SUSE-SU-2025:1027-1","SUSE-SU-2025:1176-1","SUSE-SU-2025:1183-1","SUSE-SU-2025:1241-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49148.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/375cd2536494cfbcdda84ae8b3e35bf19d0250b9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3963a5d1ff75585bddf0c3a918566a6be09d7520"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4913daecd04addb41bc96a9175a885e1c19862a8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7169f60110915c8b53bffd43741fa020a75eb87a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b490207017ba237d97b735b2aa66dc241ccd18f5"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49148.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-49148"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"c73be61cede5882f9605a852414db559c0ebedfd"},{"fixed":"7169f60110915c8b53bffd43741fa020a75eb87a"},{"fixed":"4913daecd04addb41bc96a9175a885e1c19862a8"},{"fixed":"3963a5d1ff75585bddf0c3a918566a6be09d7520"},{"fixed":"375cd2536494cfbcdda84ae8b3e35bf19d0250b9"},{"fixed":"b490207017ba237d97b735b2aa66dc241ccd18f5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49148.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}