{"schema_version":"1.7.3","id":"SUSE-SU-2021:1266-1","published":"2021-04-20T06:54:57Z","modified":"2026-02-04T02:25:29.719409Z","related":["CVE-2020-25670","CVE-2020-25671","CVE-2020-25672","CVE-2020-25673","CVE-2020-36311","CVE-2021-20219","CVE-2021-29154","CVE-2021-30002","CVE-2021-3483"],"upstream":["CVE-2020-25670","CVE-2020-25671","CVE-2020-25672","CVE-2020-25673","CVE-2020-36311","CVE-2021-20219","CVE-2021-29154","CVE-2021-30002","CVE-2021-3483"],"summary":"Security update for the Linux Kernel","details":"The SUSE Linux Enterprise 12 SP5 kernel RT was updated to receive various security and bugfixes.\n\nThe following security bugs were fixed:\n\n- CVE-2021-29154: Fixed incorrect computation of branch displacements, allowing arbitrary code execution (bsc#1184391).\n- CVE-2020-25670, CVE-2020-25671, CVE-2020-25672, CVE-2020-25673: Fixed multiple bugs in NFC subsytem (bsc#1178181).\n- CVE-2020-36311: Fixed a denial of service (soft lockup) by triggering destruction of a large SEV VM (bsc#1184511).\n- CVE-2021-3483: Fixed a use-after-free in nosy.c (bsc#1184393).\n- CVE-2021-30002: Fixed a memory leak for large arguments in video_usercopy (bsc#1184120).\n- CVE-2021-20219: Fixed a denial of service in n_tty_receive_char_special (bsc#1184397).\n\nThe following non-security bugs were fixed:\n\n- cifs: change noisy error message to FYI (bsc#1181507).\n- cifs_debug: use %pd instead of messing with ->d_name (bsc#1181507).\n- cifs: do not send close in compound create+close requests (bsc#1181507).\n- cifs: New optype for session operations (bsc#1181507).\n- cifs: print MIDs in decimal notation (bsc#1181507).\n- cifs: return proper error code in statfs(2) (bsc#1181507).\n- cifs: Tracepoints and logs for tracing credit changes (bsc#1181507).\n- fix setting irq affinity (bsc#1184583)\n- ibmvnic: Use 'skb_frag_address()' instead of hand coding it (bsc#1184114 ltc#192237).\n- locking/mutex: Fix non debug version of mutex_lock_io_nested() (git-fixes).\n- net: sched: disable TCQ_F_NOLOCK for pfifo_fast (bsc#1183405)\n- powerpc/64s: Fix instruction encoding for lis in ppc_function_entry() (bsc#1065729).\n- powerpc/pmem: Include pmem prototypes (bsc#1113295 git-fixes).\n- powerpc/pseries/mobility: handle premature return from H_JOIN (bsc#1181674 ltc#189159 git-fixes bsc#1183662 ltc#191922).\n- powerpc/pseries/mobility: use struct for shared state (bsc#1181674 ltc#189159 git-fixes bsc#1183662 ltc#191922).\n- powerpc/pseries/ras: Remove unused variable 'status' (bsc#1065729).\n- s390/pci: Fix s390_mmio_read/write with MIO (LTC#192079 bsc#1183755).\n- smb3: add dynamic trace point to trace when credits obtained (bsc#1181507).\n- smb3: fix crediting for compounding when only one request in flight (bsc#1181507).\n- usbip: fix stub_dev to check for stream socket (git-fixes).\n- usbip: fix vhci_hcd to check for stream socket (git-fixes).\n- virsh: list is showing less guests then 'xl list' (bsc#1184513).\n- vsprintf: Do not have bprintf dereference pointers (bsc#1184494).\n- vsprintf: Do not preprocess non-dereferenced pointers for bprintf (%px and %pK) (bsc#1184494).\n- vsprintf: Fix off-by-one bug in bstr_printf() processing dereferenced pointers (bsc#1184494).\n","affected":[{"package":{"name":"kernel-rt","ecosystem":"SUSE:Linux Enterprise Real Time 12 SP5","purl":"pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP5"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.12.14-10.40.1"}]}],"ecosystem_specific":{"binaries":[{"cluster-md-kmp-rt":"4.12.14-10.40.1","dlm-kmp-rt":"4.12.14-10.40.1","gfs2-kmp-rt":"4.12.14-10.40.1","kernel-devel-rt":"4.12.14-10.40.1","kernel-rt":"4.12.14-10.40.1","kernel-rt-base":"4.12.14-10.40.1","kernel-rt-devel":"4.12.14-10.40.1","kernel-rt_debug":"4.12.14-10.40.1","kernel-rt_debug-devel":"4.12.14-10.40.1","kernel-source-rt":"4.12.14-10.40.1","kernel-syms-rt":"4.12.14-10.40.1","ocfs2-kmp-rt":"4.12.14-10.40.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2021:1266-1.json"}},{"package":{"name":"kernel-rt_debug","ecosystem":"SUSE:Linux Enterprise Real Time 12 SP5","purl":"pkg:rpm/suse/kernel-rt_debug&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP5"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.12.14-10.40.1"}]}],"ecosystem_specific":{"binaries":[{"cluster-md-kmp-rt":"4.12.14-10.40.1","dlm-kmp-rt":"4.12.14-10.40.1","gfs2-kmp-rt":"4.12.14-10.40.1","kernel-devel-rt":"4.12.14-10.40.1","kernel-rt":"4.12.14-10.40.1","kernel-rt-base":"4.12.14-10.40.1","kernel-rt-devel":"4.12.14-10.40.1","kernel-rt_debug":"4.12.14-10.40.1","kernel-rt_debug-devel":"4.12.14-10.40.1","kernel-source-rt":"4.12.14-10.40.1","kernel-syms-rt":"4.12.14-10.40.1","ocfs2-kmp-rt":"4.12.14-10.40.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2021:1266-1.json"}},{"package":{"name":"kernel-source-rt","ecosystem":"SUSE:Linux Enterprise Real Time 12 SP5","purl":"pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP5"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.12.14-10.40.1"}]}],"ecosystem_specific":{"binaries":[{"cluster-md-kmp-rt":"4.12.14-10.40.1","dlm-kmp-rt":"4.12.14-10.40.1","gfs2-kmp-rt":"4.12.14-10.40.1","kernel-devel-rt":"4.12.14-10.40.1","kernel-rt":"4.12.14-10.40.1","kernel-rt-base":"4.12.14-10.40.1","kernel-rt-devel":"4.12.14-10.40.1","kernel-rt_debug":"4.12.14-10.40.1","kernel-rt_debug-devel":"4.12.14-10.40.1","kernel-source-rt":"4.12.14-10.40.1","kernel-syms-rt":"4.12.14-10.40.1","ocfs2-kmp-rt":"4.12.14-10.40.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2021:1266-1.json"}},{"package":{"name":"kernel-syms-rt","ecosystem":"SUSE:Linux Enterprise Real Time 12 SP5","purl":"pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP5"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.12.14-10.40.1"}]}],"ecosystem_specific":{"binaries":[{"cluster-md-kmp-rt":"4.12.14-10.40.1","dlm-kmp-rt":"4.12.14-10.40.1","gfs2-kmp-rt":"4.12.14-10.40.1","kernel-devel-rt":"4.12.14-10.40.1","kernel-rt":"4.12.14-10.40.1","kernel-rt-base":"4.12.14-10.40.1","kernel-rt-devel":"4.12.14-10.40.1","kernel-rt_debug":"4.12.14-10.40.1","kernel-rt_debug-devel":"4.12.14-10.40.1","kernel-source-rt":"4.12.14-10.40.1","kernel-syms-rt":"4.12.14-10.40.1","ocfs2-kmp-rt":"4.12.14-10.40.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2021:1266-1.json"}}],"references":[{"type":"ADVISORY","url":"https://www.suse.com/support/update/announcement/2021/suse-su-20211266-1/"},{"type":"REPORT","url":"https://bugzilla.suse.com/1065729"},{"type":"REPORT","url":"https://bugzilla.suse.com/1113295"},{"type":"REPORT","url":"https://bugzilla.suse.com/1178181"},{"type":"REPORT","url":"https://bugzilla.suse.com/1181507"},{"type":"REPORT","url":"https://bugzilla.suse.com/1181674"},{"type":"REPORT","url":"https://bugzilla.suse.com/1183405"},{"type":"REPORT","url":"https://bugzilla.suse.com/1183662"},{"type":"REPORT","url":"https://bugzilla.suse.com/1183755"},{"type":"REPORT","url":"https://bugzilla.suse.com/1184114"},{"type":"REPORT","url":"https://bugzilla.suse.com/1184120"},{"type":"REPORT","url":"https://bugzilla.suse.com/1184170"},{"type":"REPORT","url":"https://bugzilla.suse.com/1184391"},{"type":"REPORT","url":"https://bugzilla.suse.com/1184393"},{"type":"REPORT","url":"https://bugzilla.suse.com/1184397"},{"type":"REPORT","url":"https://bugzilla.suse.com/1184494"},{"type":"REPORT","url":"https://bugzilla.suse.com/1184511"},{"type":"REPORT","url":"https://bugzilla.suse.com/1184583"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2020-25670"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2020-25671"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2020-25672"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2020-25673"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2020-36311"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2021-20219"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2021-29154"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2021-30002"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2021-3483"}]}