{"id":"DEBIAN-CVE-2023-52698","details":"In the Linux kernel, the following vulnerability has been resolved:  calipso: fix memory leak in netlbl_calipso_add_pass()  If IPv6 support is disabled at boot (ipv6.disable=1), the calipso_init() -\u003e netlbl_calipso_ops_register() function isn't called, and the netlbl_calipso_ops_get() function always returns NULL. In this case, the netlbl_calipso_add_pass() function allocates memory for the doi_def variable but doesn't free it with the calipso_doi_free().  BUG: memory leak unreferenced object 0xffff888011d68180 (size 64):   comm \"syz-executor.1\", pid 10746, jiffies 4295410986 (age 17.928s)   hex dump (first 32 bytes):     00 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00  ................     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................   backtrace:     [\u003c...\u003e] kmalloc include/linux/slab.h:552 [inline]     [\u003c...\u003e] netlbl_calipso_add_pass net/netlabel/netlabel_calipso.c:76 [inline]     [\u003c...\u003e] netlbl_calipso_add+0x22e/0x4f0 net/netlabel/netlabel_calipso.c:111     [\u003c...\u003e] genl_family_rcv_msg_doit+0x22f/0x330 net/netlink/genetlink.c:739     [\u003c...\u003e] genl_family_rcv_msg net/netlink/genetlink.c:783 [inline]     [\u003c...\u003e] genl_rcv_msg+0x341/0x5a0 net/netlink/genetlink.c:800     [\u003c...\u003e] netlink_rcv_skb+0x14d/0x440 net/netlink/af_netlink.c:2515     [\u003c...\u003e] genl_rcv+0x29/0x40 net/netlink/genetlink.c:811     [\u003c...\u003e] netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline]     [\u003c...\u003e] netlink_unicast+0x54b/0x800 net/netlink/af_netlink.c:1339     [\u003c...\u003e] netlink_sendmsg+0x90a/0xdf0 net/netlink/af_netlink.c:1934     [\u003c...\u003e] sock_sendmsg_nosec net/socket.c:651 [inline]     [\u003c...\u003e] sock_sendmsg+0x157/0x190 net/socket.c:671     [\u003c...\u003e] ____sys_sendmsg+0x712/0x870 net/socket.c:2342     [\u003c...\u003e] ___sys_sendmsg+0xf8/0x170 net/socket.c:2396     [\u003c...\u003e] __sys_sendmsg+0xea/0x1b0 net/socket.c:2429     [\u003c...\u003e] do_syscall_64+0x30/0x40 arch/x86/entry/common.c:46     [\u003c...\u003e] entry_SYSCALL_64_after_hwframe+0x61/0xc6  Found by InfoTeCS on behalf of Linux Verification Center (linuxtesting.org) with Syzkaller  [PM: merged via the LSM tree at Jakub Kicinski request]","modified":"2026-09-15T09:02:48.638393454Z","published":"2024-05-17T15:15:20.693Z","upstream":["CVE-2023-52698"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2023-52698"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.76-1"}]}],"versions":["6.1.27-1","6.1.37-1","6.1.38-1","6.1.38-2","6.1.38-2~bpo11+1","6.1.38-3","6.1.38-4","6.1.38-4~bpo11+1","6.1.52-1","6.1.55-1","6.1.55-1~bpo11+1","6.1.64-1","6.1.66-1","6.1.67-1","6.1.69-1","6.1.69-1~bpo11+1","6.1.76-1~bpo11+1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-52698.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.6.15-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-52698.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.6.15-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-52698.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"}]}