kernel: tcp: add sanity checks to rx zerocopy

A vulnerability was found in Linux Kernel where rx zerocopy feature allowed mapping of pages owned by the filesystem, leading to potential system panic which is caused by the lack of sanity checks to rx zerocopy. A local authenticated attacker could exploit this vulnerability to cause a denial of...

kernel: tcp: add sanity checks to rx zerocopy

A vulnerability was found in Linux Kernel where rx zerocopy feature allowed mapping of pages owned by the filesystem, leading to potential system panic which is caused by the lack of sanity checks to rx zerocopy. A local authenticated attacker could exploit this vulnerability to cause a denial of...

SUSE CVE-2022-48819

In the Linux kernel, the following vulnerability has been resolved: tcp: take care of mixed splice/sendmsgMSGZEROCOPY case syzbot found that mixing sendpage and sendmsgMSGZEROCOPY calls over the same TCP socket would again trigger the infamous warning in inetsockdestruct WARNONskforwardallocgetsk...

DEBIAN-CVE-2022-48819

In the Linux kernel, the following vulnerability has been resolved: tcp: take care of mixed splice/sendmsgMSGZEROCOPY case syzbot found that mixing sendpage and sendmsgMSGZEROCOPY calls over the same TCP socket would again trigger the infamous warning in inetsockdestruct WARNONskforwardallocgetsk...

UBUNTU-CVE-2022-48819

In the Linux kernel, the following vulnerability has been resolved: tcp: take care of mixed splice/sendmsgMSGZEROCOPY case syzbot found that mixing sendpage and sendmsgMSGZEROCOPY calls over the same TCP socket would again trigger the infamous warning in inetsockdestruct WARNONskforwardallocgetsk...

CVE-2022-48819

Summary: CVE-2022-48819 affects the Linux kernel TCP path. When mixing sendpage() data and MSG_ZEROCOPY via the same socket, a warning in inet_sock_destruct() (sk_forward_alloc_get(sk)) could be triggered, due to the sendpage() path being forgotten in zerocopy handling and the need to keep zeroco...

kernel: skbuff: skb_segment, Call zero copy functions before using skbuff frags

In the Linux kernel, the following vulnerability has been resolved: skbuff: skbsegment, Call zero copy functions before using skbuff frags Commit bf5c25d60861 "skbuff: in skbsegment, call zerocopy functions once per nskb" added the call to zero copy functions in skbsegment. The change introduced ...

SUSE CVE-2022-48689

In the Linux kernel, the following vulnerability has been resolved: tcp: TX zerocopy should not sense pfmemalloc status We got a recent syzbot report 1 showing a possible misuse of pfmemalloc page status in TCP zerocopy paths. Indeed, for pages coming from user space or other layers, using...

CVE-2022-48689

In the Linux kernel, the following vulnerability has been resolved: tcp: TX zerocopy should not sense pfmemalloc status We got a recent syzbot report 1 showing a possible misuse of pfmemalloc page status in TCP zerocopy paths. Indeed, for pages coming from user space or other layers, using...

DEBIAN-CVE-2022-48689

In the Linux kernel, the following vulnerability has been resolved: tcp: TX zerocopy should not sense pfmemalloc status We got a recent syzbot report 1 showing a possible misuse of pfmemalloc page status in TCP zerocopy paths. Indeed, for pages coming from user space or other layers, using...

CVE-2022-48689

In the Linux kernel, the following vulnerability has been resolved: tcp: TX zerocopy should not sense pfmemalloc status We got a recent syzbot report 1 showing a possible misuse of pfmemalloc page status in TCP zerocopy paths. Indeed, for pages coming from user space or other layers, using...

UBUNTU-CVE-2022-48689

In the Linux kernel, the following vulnerability has been resolved: tcp: TX zerocopy should not sense pfmemalloc status We got a recent syzbot report 1 showing a possible misuse of pfmemalloc page status in TCP zerocopy paths. Indeed, for pages coming from user space or other layers, using...

CVE-2022-48689 tcp: TX zerocopy should not sense pfmemalloc status

In the Linux kernel, the following vulnerability has been resolved: tcp: TX zerocopy should not sense pfmemalloc status We got a recent syzbot report 1 showing a possible misuse of pfmemalloc page status in TCP zerocopy paths. Indeed, for pages coming from user space or other layers, using...

CVE-2022-48689

In the Linux kernel, the following vulnerability has been resolved: tcp: TX zerocopy should not sense pfmemalloc status We got a recent syzbot report 1 showing a possible misuse of pfmemalloc page status in TCP zerocopy paths. Indeed, for pages coming from user space or other layers, using...

CVE-2022-48689 tcp: TX zerocopy should not sense pfmemalloc status

In the Linux kernel, the following vulnerability has been resolved: tcp: TX zerocopy should not sense pfmemalloc status We got a recent syzbot report 1 showing a possible misuse of pfmemalloc page status in TCP zerocopy paths. Indeed, for pages coming from user space or other layers, using...

CVE-2022-48689

CVE-2022-48689 pertains to a Linux kernel issue in TCP zerocopy where pfmemalloc status could be misinterpreted by page_is_pfmemalloc() in certain paths. The Astra Linux note confirms the advisory and reiterates the same vulnerability in the kernel and notes a prereq backport: 84ce071e38a6 (net: ...

CVE-2022-48689 tcp: TX zerocopy should not sense pfmemalloc status

In the Linux kernel, the following vulnerability has been resolved: tcp: TX zerocopy should not sense pfmemalloc status We got a recent syzbot report 1 showing a possible misuse of pfmemalloc page status in TCP zerocopy paths. Indeed, for pages coming from user space or other layers, using...

SUSE CVE-2024-26640

In the Linux kernel, the following vulnerability has been resolved: tcp: add sanity checks to rx zerocopy TCP rx zerocopy intent is to map pages initially allocated from NIC drivers, not pages owned by a fs. This patch adds to canmapfrag these additional checks: - Page must not be a compound one....

CVE-2024-26640

A vulnerability was found in Linux Kernel where rx zerocopy feature allowed mapping of pages owned by the filesystem, leading to potential system panic which is caused by the lack of sanity checks to rx zerocopy. A local authenticated attacker could exploit this vulnerability to cause a denial of...

CVE-2024-26640

In the Linux kernel, the following vulnerability has been resolved: tcp: add sanity checks to rx zerocopy TCP rx zerocopy intent is to map pages initially allocated from NIC drivers, not pages owned by a fs. This patch adds to canmapfrag these additional checks: - Page must not be a compound one....