{"id":"DEBIAN-CVE-2022-49928","details":"In the Linux kernel, the following vulnerability has been resolved:  SUNRPC: Fix null-ptr-deref when xps sysfs alloc failed  There is a null-ptr-deref when xps sysfs alloc failed:   BUG: KASAN: null-ptr-deref in sysfs_do_create_link_sd+0x40/0xd0   Read of size 8 at addr 0000000000000030 by task gssproxy/457    CPU: 5 PID: 457 Comm: gssproxy Not tainted 6.0.0-09040-g02357b27ee03 #9   Call Trace:    \u003cTASK\u003e    dump_stack_lvl+0x34/0x44    kasan_report+0xa3/0x120    sysfs_do_create_link_sd+0x40/0xd0    rpc_sysfs_client_setup+0x161/0x1b0    rpc_new_client+0x3fc/0x6e0    rpc_create_xprt+0x71/0x220    rpc_create+0x1d4/0x350    gssp_rpc_create+0xc3/0x160    set_gssp_clnt+0xbc/0x140    write_gssp+0x116/0x1a0    proc_reg_write+0xd6/0x130    vfs_write+0x177/0x690    ksys_write+0xb9/0x150    do_syscall_64+0x35/0x80    entry_SYSCALL_64_after_hwframe+0x46/0xb0  When the xprt_switch sysfs alloc failed, should not add xprt and switch sysfs to it, otherwise, maybe null-ptr-deref; also initialize the 'xps_sysfs' to NULL to avoid oops when destroy it.","modified":"2026-08-27T23:04:30.790321314Z","published":"2025-05-01T15:16:18.783Z","upstream":["CVE-2022-49928"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2022-49928"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.8-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49928.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.8-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49928.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.8-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49928.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"}]}