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CVE-2019-19318 PUBLISHED

In the Linux kernel 5.3.11, mounting a crafted btrfs image twice can cause an rwsem_down_write_slowpath use-after-free because (in rwsem_can_spin_on_owner in kernel/locking/rwsem.c) rwsem_owner_flags returns an already freed pointer,

EPSS 0.35% · 57.5th percentile

Risk Scores

EPSS Score
0.35%
57.5th percentile

Affected Products

VendorProductVersions
Ubuntu:16.04:LTSlinux-hwe-edge0, 4.8.0-28.30~16.04.1, 4.8.0-30.32~16.04.1
Ubuntu:18.04:LTSlinux-oracle-5.05.0.0-1009.14~18.04.1, 5.0.0-1008.13~18.04.1, 5.0.0-1007.12~18.04.1
Ubuntu:22.04:LTSlinux-realtime5.15.0-1032.35, 0
Ubuntu:18.04:LTSlinux-azure5.0.0-1018.19~18.04.1, 5.0.0-1029.31~18.04.1, 5.0.0-1031.33
Ubuntu:18.04:LTSlinux-azure-edge5.0.0-1012.12~18.04.2, 4.18.0-1008.8~18.04.1, 4.18.0-1007.7~18.04.1
Ubuntu:20.04:LTSlinux-azure-fde5.4.0-1089.94+cvm1.2, 5.4.0-1103.109+cvm1.1, 5.4.0-1100.106+cvm1.1
Ubuntu:24.04:LTSlinux-raspi-realtime0, 6.8.0-2019.20
Ubuntu:22.04:LTSlinux-riscv0, 5.15.0-1028.32, 5.15.0-1027.31
Ubuntu:18.04:LTSlinux-hwe-edge5.0.0-19.20~18.04.1, 5.0.0-16.17~18.04.1, 5.0.0-15.16~18.04.1
Ubuntu:20.04:LTSlinux-raspi25.3.0-1015.17, 0, 5.3.0-1007.8
Ubuntu:18.04:LTSlinux-gcp-edge4.18.0-1009.10~18.04.1, 4.18.0-1008.9~18.04.1, 4.18.0-1007.8~18.04.1
Ubuntu:20.04:LTSlinux-gke5.4.0-1037.39, 5.4.0-1036.38, 5.4.0-1039.41
Ubuntu:22.04:LTSlinux-intel-iot-realtime5.15.0-1073.75, 0
Ubuntu:18.04:LTSlinux-aws-5.05.0.0-1025.28, 5.0.0-1024.27~18.04.1, 5.0.0-1023.26~18.04.1
Ubuntu:18.04:LTSlinux-gcp4.15.0-1032.34, 4.15.0-1009.9, 4.15.0-1008.8

Timeline

References

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