DEBIAN-CVE-2023-53836

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix skb refcnt race after locking changes There is a race where skb's from the skpsockbacklog can be referenced after userspace side has already skbconsumed the skbuff and its refcnt dropped to zer0 causing use afte...

DEBIAN-CVE-2023-53825

In the Linux kernel, the following vulnerability has been resolved: kcm: Fix error handling for SOCKDGRAM in kcmsendmsg. syzkaller found a memory leak in kcmsendmsg, and commit c821a88bd720 "kcm: Fix memory leak in error path of kcmsendmsg" suppressed it by updating kcmtxmsghead-lastskb if partia...

DEBIAN-CVE-2022-50676

In the Linux kernel, the following vulnerability has been resolved: net: rds: don't hold sock lock when cancelling work from rdstcpresetcallbacks syzbot is reporting lockdep warning at rdstcpresetcallbacks 1, for commit ac3615e7f3cffe2a "RDS: TCP: Reduce code duplication in rdstcpresetcallbacks"...

UBUNTU-CVE-2023-53821

In the Linux kernel, the following vulnerability has been resolved: ip6vti: fix slab-use-after-free in decodesession6 When ipv6vti device is set to the qdisc of the sfb type, the cb field of the sent skb may be modified during enqueuing. Then, slab-use-after-free may occur when ipv6vti device sen...

CVE-2023-53839

In the Linux kernel, the following vulnerability has been resolved: dccp: fix data-race around dp-dccpsmsscache dccpsendmsg reads dp-dccpsmsscache before locking the socket. Same thing in dodccpgetsockopt. Add READONCE/WRITEONCE annotations, and change dccpsendmsg to check again dccpsmsscache aft...

CVE-2023-53836

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix skb refcnt race after locking changes There is a race where skb's from the skpsockbacklog can be referenced after userspace side has already skbconsumed the skbuff and its refcnt dropped to zer0 causing use afte...

UBUNTU-CVE-2023-53839

In the Linux kernel, the following vulnerability has been resolved: dccp: fix data-race around dp-dccpsmsscache dccpsendmsg reads dp-dccpsmsscache before locking the socket. Same thing in dodccpgetsockopt. Add READONCE/WRITEONCE annotations, and change dccpsendmsg to check again dccpsmsscache aft...

UBUNTU-CVE-2022-50676

In the Linux kernel, the following vulnerability has been resolved: net: rds: don't hold sock lock when cancelling work from rdstcpresetcallbacks syzbot is reporting lockdep warning at rdstcpresetcallbacks 1, for commit ac3615e7f3cffe2a "RDS: TCP: Reduce code duplication in rdstcpresetcallbacks"...

Bluetooth: hci_event: validate skb length for unknown CC opcode

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EUVD-2023-60097

In the Linux kernel, the following vulnerability has been resolved: l2tp: Avoid possible recursive deadlock in l2tptunnelregister When a file descriptor of pppol2tp socket is passed as file descriptor of UDP socket, a recursive deadlock occurs in l2tptunnelregister. This situation is reproduced b...

EUVD-2022-55701

In the Linux kernel, the following vulnerability has been resolved: ppp: associate skb with a device at tx Syzkaller triggered flow dissector warning with the following: r0 = openat$ppp0xffffffffffffff9c, &0x7f0000000000, 0xc0802, 0x0 ioctl$PPPIOCNEWUNITr0, 0xc004743e, &0x7f00000000c0...

CVE-2023-53839

In the Linux kernel, the following vulnerability has been resolved: dccp: fix data-race around dp-dccpsmsscache dccpsendmsg reads dp-dccpsmsscache before locking the socket. Same thing in dodccpgetsockopt. Add READONCE/WRITEONCE annotations, and change dccpsendmsg to check again dccpsmsscache aft...

CVE-2023-53836 bpf, sockmap: Fix skb refcnt race after locking changes

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix skb refcnt race after locking changes There is a race where skb's from the skpsockbacklog can be referenced after userspace side has already skbconsumed the skbuff and its refcnt dropped to zer0 causing use afte...

CVE-2023-53836 bpf, sockmap: Fix skb refcnt race after locking changes

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix skb refcnt race after locking changes There is a race where skb's from the skpsockbacklog can be referenced after userspace side has already skbconsumed the skbuff and its refcnt dropped to zer0 causing use afte...

CVE-2023-53831 net: read sk->sk_family once in sk_mc_loop()

In the Linux kernel, the following vulnerability has been resolved: net: read sk-skfamily once in skmcloop syzbot is playing with IPV6ADDRFORM quite a lot these days, and managed to hit the WARNONONCE1 in skmcloop We have many more similar issues to fix. WARNING: CPU: 1 PID: 1593 at...

CVE-2023-53825

In the Linux kernel, the following vulnerability has been resolved: kcm: Fix error handling for SOCKDGRAM in kcmsendmsg. syzkaller found a memory leak in kcmsendmsg, and commit c821a88bd720 "kcm: Fix memory leak in error path of kcmsendmsg" suppressed it by updating kcmtxmsghead-lastskb if partia...

CVE-2023-53825

CVE-2023-53825 affects the Linux kernel’s kcm_sendmsg() for SOCK_DGRAM. A memory-leak in the error path could corrupt the MSG_MORE queue when a partial copy occurs; the fix updates kcm_tx_msg(head)->last_skb and adds purge behavior on failure (like UDP via udp_flush_pending_frames) to avoid qu...

CVE-2023-53825 kcm: Fix error handling for SOCK_DGRAM in kcm_sendmsg().

In the Linux kernel, the following vulnerability has been resolved: kcm: Fix error handling for SOCKDGRAM in kcmsendmsg. syzkaller found a memory leak in kcmsendmsg, and commit c821a88bd720 "kcm: Fix memory leak in error path of kcmsendmsg" suppressed it by updating kcmtxmsghead-lastskb if partia...

CVE-2022-50676

In the Linux kernel, the following vulnerability has been resolved: net: rds: don't hold sock lock when cancelling work from rdstcpresetcallbacks syzbot is reporting lockdep warning at rdstcpresetcallbacks 1, for commit ac3615e7f3cffe2a "RDS: TCP: Reduce code duplication in rdstcpresetcallbacks"...

CVE-2022-50676 net: rds: don't hold sock lock when cancelling work from rds_tcp_reset_callbacks()

In the Linux kernel, the following vulnerability has been resolved: net: rds: don't hold sock lock when cancelling work from rdstcpresetcallbacks syzbot is reporting lockdep warning at rdstcpresetcallbacks 1, for commit ac3615e7f3cffe2a "RDS: TCP: Reduce code duplication in rdstcpresetcallbacks"...