dm_table_create in drivers/md/dm-table.c in the Linux kernel through 6.7.4 can attempt to allocate more than INT_MAX bytes, and crash, because of a missing check for struct dm_ioctl.target_count. In the Linux kernel, the following vulnerability has been resolved:net: prevent mss overflow in skb_segmentOnce again syzbot is able to crash the kernel in skb_segment [1]GSO_BY_FRAGS is a forbidden value, but unfortunately the followingcomputation in skb_segment can reach it quite easily : mss = mss * partial_segs;65535 = 3 * 5 * 17 * 257, so many initial values of mss can lead toa bad final result.Make sure to limit segmentation so that the new mss value is smallerthan GSO_BY_FRAGS.[1]general protection fault, probably for non-canonical address 0xdffffc000000000e: 0000 [#1] PREEMPT SMP KASANKASAN: null-ptr-deref in range [0x0000000000000070-0x0000000000000077]CPU: 1 PID: 5079 Comm: syz-executor993 Not tainted 6.7.0-rc4-syzkaller-00141-g1ae4cd3cbdd0 #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023RIP: 0010:skb_segment+0x181d/0x3f30 net/core/skbuff.c:4551Code: 83 e3 02 e9 fb ed ff ff e8 90 68 1c f9 48 8b 84 24 f8 00 00 00 48 8d 78 70 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 less than0f greater than b6 04 02 84 c0 74 08 3c 03 0f 8e 8a 21 00 00 48 8b 84 24 f8 00RSP: 0018:ffffc900043473d0 EFLAGS: 00010202RAX: dffffc0000000000 RBX: 0000000000010046 RCX: ffffffff886b1597RDX: 000000000000000e RSI: ffffffff886b2520 RDI: 0000000000000070RBP: ffffc90004347578 R08: 0000000000000005 R09: 000000000000ffffR10: 000000000000ffff R11: 0000000000000002 R12: ffff888063202ac0R13: 0000000000010000 R14: 000000000000ffff R15: 0000000000000046FS: 0000555556e7e380 GS:ffff8880b9900000 knlGS:0000000000000000CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033CR2: 0000000020010000 CR3: 0000000027ee2000 CR4: 00000000003506f0DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400Call Trace:less thanTASK greater thanudp6_ufo_fragment+0xa0e/0xd00 net/ipv6/udp_offload.c:109ipv6_gso_segment+0x534/0x17e0 net/ipv6/ip6_offload.c:120skb_mac_gso_segment+0x290/0x610 net/core/gso.c:53__skb_gso_segment+0x339/0x710 net/core/gso.c:124skb_gso_segment include/net/gso.h:83 [inline]validate_xmit_skb+0x36c/0xeb0 net/core/dev.c:3626__dev_queue_xmit+0x6f3/0x3d60 net/core/dev.c:4338dev_queue_xmit include/linux/netdevice.h:3134 [inline]packet_xmit+0x257/0x380 net/packet/af_packet.c:276packet_snd net/packet/af_packet.c:3087 [inline]packet_sendmsg+0x24c6/0x5220 net/packet/af_packet.c:3119sock_sendmsg_nosec net/socket.c:730 [inline]__sock_sendmsg+0xd5/0x180 net/socket.c:745__sys_sendto+0x255/0x340 net/socket.c:2190__do_sys_sendto net/socket.c:2202 [inline]__se_sys_sendto net/socket.c:2198 [inline]__x64_sys_sendto+0xe0/0x1b0 net/socket.c:2198do_syscall_x64 arch/x86/entry/common.c:52 [inline]do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83entry_SYSCALL_64_after_hwframe+0x63/0x6bRIP: 0033:0x7f8692032aa9Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 less than48 greater than 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48RSP: 002b:00007fff8d685418 EFLAGS: 00000246 ORIG_RAX: 000000000000002cRAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f8692032aa9RDX: 0000000000010048 RSI: 00000000200000c0 RDI: 0000000000000003RBP: 00000000000f4240 R08: 0000000020000540 R09: 0000000000000014R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff8d685480R13: 0000000000000001 R14: 00007fff8d685480 R15: 0000000000000003less than/TASK greater thanModules linked in:---[ end trace 0000000000000000 ]---RIP: 0010:skb_segment+0x181d/0x3f30 net/core/skbuff.c:4551Code: 83 e3 02 e9 fb ed ff ff e8 90 68 1c f9 48 8b 84 24 f8 00 00 00 48 8d 78 70 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 less than0f greater than b6 04 02 84 c0 74 08 3c 03 0f 8e 8a 21 00 00 48 8b 84 24 f8 00RSP: 0018:ffffc900043473d0 EFLAGS: 00010202RAX: dffffc0000000000 RBX: 0000000000010046 RCX: ffffffff886b1597RDX: 000000000000000e RSI: ffffffff886b2520 RDI: 0000000000000070RBP: ffffc90004347578 R0---truncated--- A vulnerability was found in vhost_new_msg in drivers/vhost/vhost.c in the Linux kernel, which does not properly initialize memory in messages passed between virtual guests and the host operating system in the vhost/vhost.c:vhost_new_msg function. This issue can allow local privileged users to read some kernel memory contents when reading from the /dev/vhost-net device file. A vulnerability was reported in the Open vSwitch sub-component in the Linux Kernel. The flaw occurs when a recursive operation of code push recursively calls into the code block. The OVS module does not validate the stack depth, pushing too many frames and causing a stack overflow. As a result, this can lead to a crash or other related issues. In btrfs_get_root_ref in fs/btrfs/disk-io.c in the Linux kernel through 6.7.1, there can be an assertion failure and crash because a subvolume can be read out too soon after its root item is inserted upon subvolume creation. copy_params in drivers/md/dm-ioctl.c in the Linux kernel through 6.7.1 can attempt to allocate more than INT_MAX bytes, and crash, because of a missing param_kernel- greater thandata_size check. This is related to ctl_ioctl