UBUNTU-CVE-2023-54226

In the Linux kernel, the following vulnerability has been resolved: afunix: Fix data races around sk-skshutdown. KCSAN found a data race around sk-skshutdown where unixreleasesock and unixshutdown update it under unixstatelock, OTOH unixpoll and unixdgrampoll read it locklessly. We need to annota...

UBUNTU-CVE-2023-54218

In the Linux kernel, the following vulnerability has been resolved: net: Fix load-tearing on sk-skstamp in sockrecvcmsgs. KCSAN found a data race in sockrecvcmsgs where the read access to sk-skstamp needs READONCE. BUG: KCSAN: data-race in packetrecvmsg / packetrecvmsg write marked to...

CVE-2023-54218 net: Fix load-tearing on sk->sk_stamp in sock_recv_cmsgs().

In the Linux kernel, the following vulnerability has been resolved: net: Fix load-tearing on sk-skstamp in sockrecvcmsgs. KCSAN found a data race in sockrecvcmsgs where the read access to sk-skstamp needs READONCE. BUG: KCSAN: data-race in packetrecvmsg / packetrecvmsg write marked to...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2025-992606)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992606 advisory. In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: fix race in sockmapfree sockmapfree calls releasesocksk without owning a reference ...

PT-2025-54047

In the Linux kernel, the following vulnerability has been resolved: net: Fix load-tearing on sk-sk stamp in sock recv cmsgs. KCSAN found a data race in sock recv cmsgs where the read access to sk-sk stamp needs READ ONCE. BUG: KCSAN: data-race in packet recvmsg / packet recvmsg write marked to...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2025-992206)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992206 advisory. In the Linux kernel, the following vulnerability has been resolved: net: If sock is dead don't access sock's skwq in skstreamwaitmemory Fixes the below NULL pointer...

SUSE CVE-2025-68353

In the Linux kernel, the following vulnerability has been resolved: net: vxlan: prevent NULL deref in vxlanxmitone Neither sock4 nor sock6 pointers are guaranteed to be non-NULL in vxlanxmitone, e.g. if the iface is brought down. This can lead to the following NULL dereference: BUG: kernel NULL...

CVE-2023-54142

In the Linux kernel, the following vulnerability has been resolved: gtp: Fix use-after-free in gtpencapdestroy. syzkaller reported use-after-free in gtpencapdestroy. 0 It shows the same process freed sk and touched it illegally. Commit e198987e7dd7 "gtp: fix suspicious RCU usage" added locksock a...

UBUNTU-CVE-2023-54085

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix NULL pointer dereference on fastopen early fallback In case of early fallback to TCP, subflowsynrecvsock deletes the subflow context before returning the newly allocated sock to the caller. The fastopen path does not...

CVE-2023-54142

CVE-2023-54142: In the Linux kernel gtp_encap path, a use-after-free occurs in __gtp_encap_destroy() when sk cleanup races with sock data access. The advisory notes that a previous patch added lock_sock() and release_sock() around __gtp_encap_destroy() to protect sk->sk_user_data, but release_...

SUSE CVE-2025-68305

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisock: Prevent race in socket write iter and sock bind There is a potential race condition between sock bind and socket write iter. bind may free the same cmd via mgmtpending before write iter sends the cmd, just as...

EUVD-2025-203775

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisock: Prevent race in socket write iter and sock bind There is a potential race condition between sock bind and socket write iter. bind may free the same cmd via mgmtpending before write iter sends the cmd, just as...

CVE-2025-68227 mptcp: Fix proto fallback detection with BPF

In the Linux kernel, the following vulnerability has been resolved: mptcp: Fix proto fallback detection with BPF The sockmap feature allows bpf syscall from userspace, or based on bpf sockops, replacing the skprot of sockets during protocol stack processing with sockmap's custom read/write...

SUSE CVE-2023-53781

In the Linux kernel, the following vulnerability has been resolved: smc: Fix use-after-free in tcpwritetimerhandler. With Eric's ref tracker, syzbot finally found a repro for use-after-free in tcpwritetimerhandler by kernel TCP sockets. 0 If SMC creates a kernel socket in smccreate, the kernel...

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...

UBUNTU-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 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

CVE-2022-50676 affects the Linux kernel component net/rds, specifically the rds_tcp_reset_callbacks() path. The root cause is that cancel_delayed_work_sync() was placed in a section protected by lock_sock(), which could be called by functions like rds_send_xmit(), leading to a potential lock orde...

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"...

DEBIAN-CVE-2023-53781

In the Linux kernel, the following vulnerability has been resolved: smc: Fix use-after-free in tcpwritetimerhandler. With Eric's ref tracker, syzbot finally found a repro for use-after-free in tcpwritetimerhandler by kernel TCP sockets. 0 If SMC creates a kernel socket in smccreate, the kernel...