SUSE-SU-2023:2537-1

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SUSE-SU-2023:2537-1

Summary: Security update for the Linux Kernel

Details: The SUSE Linux Enterprise 12 SP4 LTSS kernel was updated to receive various security and bugfixes. The following security bugs were fixed: - CVE-2022-3566: Fixed race condition in the TCP Handler (bsc#1204405). - CVE-2022-45886: Fixed a .disconnect versus dvb_device_open race condition in dvb_net.c that lead to a use-after-free (bsc#1205760). - CVE-2022-45885: Fixed a race condition in dvb_frontend.c that could cause a use-after-free when a device is disconnected (bsc#1205758). - CVE-2022-45887: Fixed a memory leak in ttusb_dec.c caused by the lack of a dvb_frontend_detach call (bsc#1205762). - CVE-2022-45919: Fixed a use-after-free in dvb_ca_en50221.c that could occur if there is a disconnect after an open, because of the lack of a wait_event (bsc#1205803). - CVE-2022-45884: Fixed a use-after-free in dvbdev.c, related to dvb_register_device dynamically allocating fops (bsc#1205756). - CVE-2023-31084: Fixed a blocking issue in drivers/media/dvb-core/dvb_frontend.c (bsc#1210783). - CVE-2023-31436: Fixed an out-of-bounds write in qfq_change_class() because lmax can exceed QFQ_MIN_LMAX (bsc#1210940 bsc#1211260). - CVE-2023-2194: Fixed an out-of-bounds write vulnerability in the SLIMpro I2C device driver (bsc#1210715). - CVE-2023-32269: Fixed a use-after-free in af_netrom.c, related to the fact that accept() was also allowed for a successfully connected AF_NETROM socket (bsc#1211186). - CVE-2023-1380: A slab-out-of-bound read problem was fixed in brcmf_get_assoc_ies(), that could lead to a denial of service (bsc#1209287). - CVE-2023-2513: A use-after-free vulnerability was fixed in the ext4 filesystem, related to the way it handled the extra inode size for extended attributes (bsc#1211105). - CVE-2023-2176: A vulnerability was found in compare_netdev_and_ip in drivers/infiniband/core/cma.c in RDMA. The improper cleanup results in out-of-boundary read, where a local user can utilize this problem to crash the system or escalation of privilege (bsc#1210629). The following non-security bugs were fixed: - ext4: add EXT4_INODE_HAS_XATTR_SPACE macro in xattr.h (bsc#1206878). - ipv6: sr: fix out-of-bounds read when setting HMAC data (bsc#1211592).

References: https://www.suse.com/support/update/announcement/2023/suse-su-20232537-1/, https://bugzilla.suse.com/1204405, https://bugzilla.suse.com/1205756, https://bugzilla.suse.com/1205758, https://bugzilla.suse.com/1205760, https://bugzilla.suse.com/1205762, https://bugzilla.suse.com/1205803, https://bugzilla.suse.com/1206878, https://bugzilla.suse.com/1209287, https://bugzilla.suse.com/1210629, https://bugzilla.suse.com/1210715, https://bugzilla.suse.com/1210783, https://bugzilla.suse.com/1210940, https://bugzilla.suse.com/1211105, https://bugzilla.suse.com/1211186, https://bugzilla.suse.com/1211260, https://bugzilla.suse.com/1211592, https://www.suse.com/security/cve/CVE-2022-3566, https://www.suse.com/security/cve/CVE-2022-45884, https://www.suse.com/security/cve/CVE-2022-45885, https://www.suse.com/security/cve/CVE-2022-45886, https://www.suse.com/security/cve/CVE-2022-45887, https://www.suse.com/security/cve/CVE-2022-45919, https://www.suse.com/security/cve/CVE-2023-1380, https://www.suse.com/security/cve/CVE-2023-2176, https://www.suse.com/security/cve/CVE-2023-2194, https://www.suse.com/security/cve/CVE-2023-2513, https://www.suse.com/security/cve/CVE-2023-31084, https://www.suse.com/security/cve/CVE-2023-31436, https://www.suse.com/security/cve/CVE-2023-32269