UBUNTU-CVE-2022-48671

In the Linux kernel, the following vulnerability has been resolved: cgroup: Add missing cpusreadlock to cgroupattachtaskall syzbot is hitting percpurwsemassertheld&cpuhotpluglock warning at cpusetattach 1, for commit 4f7e7236435ca0ab "cgroup: Fix threadgrouprwsem cpusreadlock deadlock" missed tha...

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

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 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-2022-48671

CVE-2022-48671 affects the Linux kernel in the cgroup subsystem: a missing cpus_read_lock() in cgroup_attach_task_all() allowed a deadlock with threadgroup_rwsem, mitigated by adding cpus_read_lock() (aligned with cgroup_procs_write_start()). The issue was observed by syzbot at cpuset_attach() an...

CVE-2022-48671 cgroup: Add missing cpus_read_lock() to cgroup_attach_task_all()

In the Linux kernel, the following vulnerability has been resolved: cgroup: Add missing cpusreadlock to cgroupattachtaskall syzbot is hitting percpurwsemassertheld&cpuhotpluglock warning at cpusetattach 1, for commit 4f7e7236435ca0ab "cgroup: Fix threadgrouprwsem cpusreadlock deadlock" missed tha...

SUSE CVE-2024-26956

In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix failure to detect DAT corruption in btree and direct mappings Patch series "nilfs2: fix kernel bug at submitbhwbc". This resolves a kernel BUG reported by syzbot. Since there are two flaws involved, I've made each one...

SUSE CVE-2024-27070

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid use-after-free issue in f2fsfilemapfault syzbot reports a f2fs bug as below: BUG: KASAN: slab-use-after-free in f2fsfilemapfault+0xd1/0x2c0 fs/f2fs/file.c:49 Read of size 8 at addr ffff88807bb22680 by task...

CVE-2024-27059

In the Linux kernel, the following vulnerability has been resolved: USB: usb-storage: Prevent divide-by-0 error in isd200atacommand The isd200 sub-driver in usb-storage uses the HEADS and SECTORS values in the ATA ID information to calculate cylinder and head values when creating a CDB for READ o...

CVE-2024-27070 f2fs: fix to avoid use-after-free issue in f2fs_filemap_fault

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid use-after-free issue in f2fsfilemapfault syzbot reports a f2fs bug as below: BUG: KASAN: slab-use-after-free in f2fsfilemapfault+0xd1/0x2c0 fs/f2fs/file.c:49 Read of size 8 at addr ffff88807bb22680 by task...

CVE-2024-27069

CVE-2024-27069 affects the Linux kernel overlayfs ovl_verify_area path. The issue was a WARN_ON assertion triggered by syzbot’s copy-up loop when a lower file’s size changes underneath overlayfs. The documented fix relaxes the WARN_ON in ovl_verify_area and aligns error handling (returning EIO fo...

CVE-2024-27069 ovl: relax WARN_ON in ovl_verify_area()

In the Linux kernel, the following vulnerability has been resolved: ovl: relax WARNON in ovlverifyarea syzbot hit an assertion in copy up data loop which looks like it is the result of a lower file whose size is being changed underneath overlayfs. This type of use case is documented to cause...

CVE-2024-27069 ovl: relax WARN_ON in ovl_verify_area()

In the Linux kernel, the following vulnerability has been resolved: ovl: relax WARNON in ovlverifyarea syzbot hit an assertion in copy up data loop which looks like it is the result of a lower file whose size is being changed underneath overlayfs. This type of use case is documented to cause...

CVE-2024-27069

In the Linux kernel, the following vulnerability has been resolved: ovl: relax WARNON in ovlverifyarea syzbot hit an assertion in copy up data loop which looks like it is the result of a lower file whose size is being changed underneath overlayfs. This type of use case is documented to cause...

CVE-2024-27059

CVE-2024-27059 refers to a Linux kernel vulnerability in the usb-storage isd200 sub-driver. The issue arises from using ATA ID values HEADS and SECTORS to derive cylinder/head for READ/WRITE CDBs; division/modulus by zero could occur if either value is 0. The fix blocks binding to devices with AT...

CVE-2024-26956

In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix failure to detect DAT corruption in btree and direct mappings Patch series "nilfs2: fix kernel bug at submitbhwbc". This resolves a kernel BUG reported by syzbot. Since there are two flaws involved, I've made each one...

CVE-2024-26956

In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix failure to detect DAT corruption in btree and direct mappings Patch series "nilfs2: fix kernel bug at submitbhwbc". This resolves a kernel BUG reported by syzbot. Since there are two flaws involved, I've made each one...

UBUNTU-CVE-2024-26956

In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix failure to detect DAT corruption in btree and direct mappings Patch series "nilfs2: fix kernel bug at submitbhwbc". This resolves a kernel BUG reported by syzbot. Since there are two flaws involved, I've made each one...