DEBIAN-CVE-2023-52845

In the Linux kernel, the following vulnerability has been resolved: tipc: Change nlapolicy for bearer-related names to NLANULSTRING syzbot reported the following uninit-value access issue 1: ===================================================== BUG: KMSAN: uninit-value in strlen lib/string.c:418...

CVE-2023-52810

In the Linux kernel, the following vulnerability has been resolved: fs/jfs: Add check for negative dbl2nbperpage l2nbperpage is log2number of blks per page, and the minimum legal value should be 0, not negative. In the case of l2nbperpage being negative, an error will occur when subsequently used...

DEBIAN-CVE-2023-52796

In the Linux kernel, the following vulnerability has been resolved: ipvlan: add ipvlanroutev6outbound helper Inspired by syzbot reports using a stack of multiple ipvlan devices. Reduce stack size needed in ipvlanprocessv6outbound by moving the flowi6 struct used for the route lookup in an non...

DEBIAN-CVE-2023-52804

In the Linux kernel, the following vulnerability has been resolved: fs/jfs: Add validity check for dbmaxag and dbagpref Both dbmaxag and dbagpref are used as the index of the dbagfree array, but there is currently no validity check for dbmaxag and dbagpref, which can lead to errors. The following...

CVE-2023-52796

In the Linux kernel, the following vulnerability has been resolved: ipvlan: add ipvlanroutev6outbound helper Inspired by syzbot reports using a stack of multiple ipvlan devices. Reduce stack size needed in ipvlanprocessv6outbound by moving the flowi6 struct used for the route lookup in an non...

DEBIAN-CVE-2023-52737

In the Linux kernel, the following vulnerability has been resolved: btrfs: lock the inode in shared mode before starting fiemap Currently fiemap does not take the inode's lock VFS lock, it only locks a file range in the inode's io tree. This however can lead to a deadlock if we have a concurrent...

UBUNTU-CVE-2023-52845

In the Linux kernel, the following vulnerability has been resolved: tipc: Change nlapolicy for bearer-related names to NLANULSTRING syzbot reported the following uninit-value access issue 1: ===================================================== BUG: KMSAN: uninit-value in strlen lib/string.c:418...

CVE-2023-52804

In the Linux kernel, the following vulnerability has been resolved: fs/jfs: Add validity check for dbmaxag and dbagpref Both dbmaxag and dbagpref are used as the index of the dbagfree array, but there is currently no validity check for dbmaxag and dbagpref, which can lead to errors. The following...

CVE-2023-52703

In the Linux kernel, the following vulnerability has been resolved: net/usb: kalmia: Don't pass actlen in usbbulkmsg error path syzbot reported that actlen in kalmiasendinitpacket is uninitialized when passing it to the first usbbulkmsg error path. Jiri Pirko noted that it's pointless to pass it ...

UBUNTU-CVE-2023-52796

In the Linux kernel, the following vulnerability has been resolved: ipvlan: add ipvlanroutev6outbound helper Inspired by syzbot reports using a stack of multiple ipvlan devices. Reduce stack size needed in ipvlanprocessv6outbound by moving the flowi6 struct used for the route lookup in an non...

CVE-2023-52845 tipc: Change nla_policy for bearer-related names to NLA_NUL_STRING

In the Linux kernel, the following vulnerability has been resolved: tipc: Change nlapolicy for bearer-related names to NLANULSTRING syzbot reported the following uninit-value access issue 1: ===================================================== BUG: KMSAN: uninit-value in strlen lib/string.c:418...

CVE-2023-52845

The CVE-2023-52845 vulnerability affects the Linux kernel TIPC bearer-name handling. A non-null-terminated bearer name passed via netlink could trigger a buffer overrun when functions like strstr are used on bearer-name strings, leading to an uninitialized-value exposure as reported by syzbot. Th...

CVE-2023-52845 tipc: Change nla_policy for bearer-related names to NLA_NUL_STRING

In the Linux kernel, the following vulnerability has been resolved: tipc: Change nlapolicy for bearer-related names to NLANULSTRING syzbot reported the following uninit-value access issue 1: ===================================================== BUG: KMSAN: uninit-value in strlen lib/string.c:418...

CVE-2023-52843 llc: verify mac len before reading mac header

In the Linux kernel, the following vulnerability has been resolved: llc: verify mac len before reading mac header LLC reads the mac header with ethhdr without verifying that the skb has an Ethernet header. Syzbot was able to enter llcrcv on a tun device. Tun can insert packets without mac len and...

CVE-2023-52843 llc: verify mac len before reading mac header

In the Linux kernel, the following vulnerability has been resolved: llc: verify mac len before reading mac header LLC reads the mac header with ethhdr without verifying that the skb has an Ethernet header. Syzbot was able to enter llcrcv on a tun device. Tun can insert packets without mac len and...

CVE-2023-52810 fs/jfs: Add check for negative db_l2nbperpage

In the Linux kernel, the following vulnerability has been resolved: fs/jfs: Add check for negative dbl2nbperpage l2nbperpage is log2number of blks per page, and the minimum legal value should be 0, not negative. In the case of l2nbperpage being negative, an error will occur when subsequently used...

CVE-2023-52804

CVE-2023-52804 affects the Linux kernel (fs/jfs) where db_maxag and db_agpref were used as indexes into db_agfree without validity checks. This could trigger an array-index-out-of-bounds UB in fs/jfs/jfs_dmap.c:639:20 (index 7936 out of range for atomic_t[128]). The issue has been addressed by ad...

CVE-2023-52804 fs/jfs: Add validity check for db_maxag and db_agpref

In the Linux kernel, the following vulnerability has been resolved: fs/jfs: Add validity check for dbmaxag and dbagpref Both dbmaxag and dbagpref are used as the index of the dbagfree array, but there is currently no validity check for dbmaxag and dbagpref, which can lead to errors. The following...

CVE-2023-52796 ipvlan: add ipvlan_route_v6_outbound() helper

In the Linux kernel, the following vulnerability has been resolved: ipvlan: add ipvlanroutev6outbound helper Inspired by syzbot reports using a stack of multiple ipvlan devices. Reduce stack size needed in ipvlanprocessv6outbound by moving the flowi6 struct used for the route lookup in an non...

CVE-2023-52796 ipvlan: add ipvlan_route_v6_outbound() helper

In the Linux kernel, the following vulnerability has been resolved: ipvlan: add ipvlanroutev6outbound helper Inspired by syzbot reports using a stack of multiple ipvlan devices. Reduce stack size needed in ipvlanprocessv6outbound by moving the flowi6 struct used for the route lookup in an non...