CVE-2023-53275

In the Linux kernel, the following vulnerability has been resolved: ALSA: hda: fix a possible null-pointer dereference due to data race in sndhdacregmapsync The variable codec-regmap is often protected by the lock codec-regmaplock when is accessed. However, it is accessed without holding the lock...

CVE-2023-53275

CVE-2023-53275: In Linux kernel ALSA HDA code, a data race around snd_hdac_regmap_sync() can lead to a null-pointer dereference of codec->regmap if it is NULL after an if check. The root cause is accessing codec->regmap without holding the regmap_lock, which could race with regcache_sync() ...

PT-2025-38047

Name of the Vulnerable Software and Affected Versions: Linux kernel versions 6.5.0-rc6+ through 6.5.0-rc7-kcsan-00169-g81eaf55a60fc Description: A data race exists in the Linux kernel's workqueue functionality, specifically related to the incrementing of pwq-stats. Kernel Concurrency Sanitizer...

SUSE CVE-2022-50291

In the Linux kernel, the following vulnerability has been resolved: kcm: annotate data-races around kcm-rxpsock kcm-rxpsock can be read locklessly in kcmrfree. Annotate the read and writes accordingly. We do the same for kcm-rxwait in the following patch. syzbot reported: BUG: KCSAN: data-race in...

SUSE CVE-2022-50323

In the Linux kernel, the following vulnerability has been resolved: net: do not sense pfmemalloc status in skbappendpagefrags skbappendpagefrags is used by afunix and udp sendpage implementation so far. In commit 326140063946 "tcp: TX zerocopy should not sense pfmemalloc status" we explained why ...

CVE-2023-53204

In the Linux kernel, the following vulnerability has been resolved: afunix: Fix data-races around user-unixinflight. user-unixinflight is changed under spinlockunixgclock, but toomanyunixfds reads it locklessly. Let's annotate the write/read accesses to user-unixinflight. BUG: KCSAN: data-race in...

DEBIAN-CVE-2023-53204

In the Linux kernel, the following vulnerability has been resolved: afunix: Fix data-races around user-unixinflight. user-unixinflight is changed under spinlockunixgclock, but toomanyunixfds reads it locklessly. Let's annotate the write/read accesses to user-unixinflight. BUG: KCSAN: data-race in...

DEBIAN-CVE-2022-50291

In the Linux kernel, the following vulnerability has been resolved: kcm: annotate data-races around kcm-rxpsock kcm-rxpsock can be read locklessly in kcmrfree. Annotate the read and writes accordingly. We do the same for kcm-rxwait in the following patch. syzbot reported: BUG: KCSAN: data-race in...

CVE-2022-50265

In the Linux kernel, the following vulnerability has been resolved: kcm: annotate data-races around kcm-rxwait kcm-rxpsock can be read locklessly in kcmrfree. Annotate the read and writes accordingly. syzbot reported: BUG: KCSAN: data-race in kcmrcvstrparser / kcmrfree write to 0xffff88810784e3d0...

DEBIAN-CVE-2022-50265

In the Linux kernel, the following vulnerability has been resolved: kcm: annotate data-races around kcm-rxwait kcm-rxpsock can be read locklessly in kcmrfree. Annotate the read and writes accordingly. syzbot reported: BUG: KCSAN: data-race in kcmrcvstrparser / kcmrfree write to 0xffff88810784e3d0...

UBUNTU-CVE-2022-50291

In the Linux kernel, the following vulnerability has been resolved: kcm: annotate data-races around kcm-rxpsock kcm-rxpsock can be read locklessly in kcmrfree. Annotate the read and writes accordingly. We do the same for kcm-rxwait in the following patch. syzbot reported: BUG: KCSAN: data-race in...

UBUNTU-CVE-2022-50265

In the Linux kernel, the following vulnerability has been resolved: kcm: annotate data-races around kcm-rxwait kcm-rxpsock can be read locklessly in kcmrfree. Annotate the read and writes accordingly. syzbot reported: BUG: KCSAN: data-race in kcmrcvstrparser / kcmrfree write to 0xffff88810784e3d0...

UBUNTU-CVE-2023-53204

In the Linux kernel, the following vulnerability has been resolved: afunix: Fix data-races around user-unixinflight. user-unixinflight is changed under spinlockunixgclock, but toomanyunixfds reads it locklessly. Let's annotate the write/read accesses to user-unixinflight. BUG: KCSAN: data-race in...

CVE-2022-50323 net: do not sense pfmemalloc status in skb_append_pagefrags()

In the Linux kernel, the following vulnerability has been resolved: net: do not sense pfmemalloc status in skbappendpagefrags skbappendpagefrags is used by afunix and udp sendpage implementation so far. In commit 326140063946 "tcp: TX zerocopy should not sense pfmemalloc status" we explained why ...

CVE-2022-50323

CVE-2022-50323 (Linux kernel) : The vulnerability stems from skb_append_pagefrags() sensing pfmemalloc status for pages owned by user space, triggering a data race reported by KCSAN in the swap/LRU paths. The fix/mitigation is to stop sensing pfmemalloc status for these pages and to use skb_fill_...

CVE-2022-50291

CVE-2022-50291 pertains to the Linux kernel KCM subsystem. Connected advisories describe a data-race in kcm_rfree() related to kcm->rx_psock and an analogous race for kcm->rx_wait, fixed by annotating reads/writes around these fields. The patches address lockless reads in kcm_rfree and ensu...

CVE-2022-50291 kcm: annotate data-races around kcm->rx_psock

In the Linux kernel, the following vulnerability has been resolved: kcm: annotate data-races around kcm-rxpsock kcm-rxpsock can be read locklessly in kcmrfree. Annotate the read and writes accordingly. We do the same for kcm-rxwait in the following patch. syzbot reported: BUG: KCSAN: data-race in...

CVE-2022-50291 kcm: annotate data-races around kcm->rx_psock

In the Linux kernel, the following vulnerability has been resolved: kcm: annotate data-races around kcm-rxpsock kcm-rxpsock can be read locklessly in kcmrfree. Annotate the read and writes accordingly. We do the same for kcm-rxwait in the following patch. syzbot reported: BUG: KCSAN: data-race in...

CVE-2023-53204

CVE-2023-53204 affects the Linux kernel af_unix subsystem. The root cause is a data race on the unix_inflight field: user->unix_inflight is modified under spin_lock(unix_gc_lock), while too_many_unix_fds() reads it locklessly, enabling a race between unix_attach_fds and the unix_inflight acces...

CVE-2023-53204 af_unix: Fix data-races around user->unix_inflight.

In the Linux kernel, the following vulnerability has been resolved: afunix: Fix data-races around user-unixinflight. user-unixinflight is changed under spinlockunixgclock, but toomanyunixfds reads it locklessly. Let's annotate the write/read accesses to user-unixinflight. BUG: KCSAN: data-race in...