In the Linux kernel, the following vulnerability has been resolved:
sysv: don't call sb_bread() with pointers_lock held
syzbot is reporting sleep in atomic context in SysV filesystem [1], for sb_bread() is called with rw_spinlock held.
A "write_lock(&pointers_lock) => read_lock(&pointers_lock) deadlock" bug and a "sb_bread() with write_lock(&pointers_lock)" bug were introduced by "Replace BKL for chain locking with sysvfs-private rwlock" in Linux 2.5.12.
Then, "[PATCH] err1-40: sysvfs locking fix" in Linux 2.6.8 fixed the former bug by moving pointers_lock lock to the callers, but instead introduced a "sb_bread() with read_lock(&pointers_lock)" bug (which made this problem easier to hit).
Al Viro suggested that why not to do like get_branch()/get_block()/ find_shared() in Minix filesystem does. And doing like that is almost a revert of "[PATCH] err1-40: sysvfs locking fix" except that get_branch() from with find_shared() is called without write_lock(&pointers_lock).
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jun 27, 2024 | May 19, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | May 19, 2024 |
| Suse | — | Upgrade dtb-caviumUpgrade dlm-kmp-64kbUpgrade ocfs2-kmp-defaultUpgrade cluster-md-kmp-64kbUpgrade kernel-rt_debug-livepatch-develUpgrade kernel-source-azureUpgrade reiserfs-kmp-defaultUpgrade dtb-amazonUpgrade dtb-xilinxUpgrade dtb-mediatekUpgrade ocfs2-kmp-azureUpgrade kernel-64kb-develUpgrade kernel-rt_debug-develUpgrade kernel-develUpgrade kernel-sourceUpgrade kernel-azure-optionalUpgrade gfs2-kmp-azureUpgrade kselftests-kmp-azureUpgrade dtb-allwinnerUpgrade cluster-md-kmp-azureUpgrade kernel-rt-livepatchUpgrade ocfs2-kmp-64kbUpgrade dtb-alteraUpgrade kernel-obs-buildUpgrade kernel-debug-vdsoUpgrade kernel-rt-develUpgrade dtb-hisiliconUpgrade dtb-qcomUpgrade cluster-md-kmp-rtUpgrade dtb-exynosUpgrade kernel-syms-azureUpgrade kselftests-kmp-64kbUpgrade kernel-default-optionalUpgrade kernel-default-vdsoUpgrade kernel-default-livepatchUpgrade kernel-devel-rtUpgrade kernel-default-base-rebuildUpgrade kernel-rt-extraUpgrade kernel-64kb-extraUpgrade kernel-azureUpgrade kernel-rtUpgrade dtb-freescaleUpgrade kernel-debugUpgrade dtb-lgUpgrade dtb-sprdUpgrade dtb-rockchipUpgrade dlm-kmp-rtUpgrade kernel-default-develUpgrade reiserfs-kmp-azureUpgrade gfs2-kmp-defaultUpgrade dtb-renesasUpgrade kernel-64kbUpgrade kernel-source-vanillaUpgrade kernel-azure-vdsoUpgrade dtb-armUpgrade ocfs2-kmp-rtUpgrade kernel-obs-qaUpgrade kernel-azure-livepatch-develUpgrade dtb-nvidiaUpgrade kernel-rt-vdsoUpgrade dtb-socionextUpgrade kselftests-kmp-rtUpgrade kernel-kvmsmall-develUpgrade kernel-symsUpgrade kernel-devel-azureUpgrade reiserfs-kmp-64kbUpgrade cluster-md-kmp-defaultUpgrade kernel-kvmsmallUpgrade gfs2-kmp-64kbUpgrade kernel-debug-develUpgrade dtb-marvellUpgrade kernel-defaultUpgrade gfs2-kmp-rtUpgrade kernel-zfcpdumpUpgrade kernel-syms-rtUpgrade kernel-rt-livepatch-develUpgrade kernel-azure-develUpgrade kernel-kvmsmall-livepatch-develUpgrade kernel-default-extraUpgrade reiserfs-kmp-rtUpgrade kselftests-kmp-defaultUpgrade kernel-default-baseUpgrade dtb-amlogicUpgrade dtb-amdUpgrade dlm-kmp-defaultUpgrade kernel-source-rtUpgrade kernel-macrosUpgrade kernel-docsUpgrade kernel-default-livepatch-develUpgrade kernel-azure-extraUpgrade kernel-64kb-optionalUpgrade kernel-64kb-livepatch-develUpgrade kernel-rt-optionalUpgrade kernel-rt_debugUpgrade kernel-rt_debug-vdsoUpgrade kernel-kvmsmall-vdsoUpgrade kernel-docs-htmlUpgrade kernel-debug-livepatch-develUpgrade dtb-appleUpgrade dtb-apmUpgrade dtb-broadcomUpgrade dlm-kmp-azure | Jun 13, 2024 | May 19, 2024 |
| Ubuntu | — | Upgrade linux-image-6.8.0-1009-nvidia-64kUpgrade linux-image-5.4.0-1127-oracleUpgrade linux-image-lowlatency-64kUpgrade linux-image-6.8.0-1008-ibmUpgrade linux-image-raspi-nolpaeUpgrade linux-image-azure-lts-22.04Upgrade linux-image-5.4.0-189-lowlatencyUpgrade linux-image-intelUpgrade linux-image-6.8.0-1011-awsUpgrade linux-image-6.8.0-1006-gkeUpgrade linux-image-azure-fdeUpgrade linux-image-raspi2Upgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-virtual-hwe-24.04Upgrade linux-image-5.15.0-1060-intel-iotgUpgrade linux-image-6.8.0-38-lowlatencyUpgrade linux-image-generic-lpaeUpgrade linux-image-5.15.0-116-generic-64kUpgrade linux-image-virtualUpgrade linux-image-ibm-classicUpgrade linux-image-ibm-lts-20.04Upgrade linux-image-6.8.0-1007-intelUpgrade linux-image-5.4.0-1132-gcpUpgrade linux-image-lowlatencyUpgrade linux-image-azure-lts-20.04Upgrade linux-image-snapdragon-hwe-18.04Upgrade linux-image-6.8.0-1010-gcpUpgrade linux-image-aws-lts-20.04Upgrade linux-image-6.8.0-1008-oemUpgrade linux-image-5.15.0-116-generic-lpaeUpgrade linux-image-generic-64kUpgrade linux-image-genericUpgrade linux-image-oracle-lts-20.04Upgrade linux-image-aws-lts-22.04Upgrade linux-image-6.8.0-1010-azure-fdeUpgrade linux-image-5.15.0-116-genericUpgrade linux-image-6.8.0-38-generic-64kUpgrade linux-image-ibmUpgrade linux-image-6.8.0-38-lowlatency-64kUpgrade linux-image-gcp-lts-20.04Upgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-intel-iotgUpgrade linux-image-5.15.0-1048-gkeopUpgrade linux-image-gkeop-5.4Upgrade linux-image-bluefieldUpgrade linux-image-gcp-lts-22.04Upgrade linux-image-gke-5.15Upgrade linux-image-nvidiaUpgrade linux-image-5.15.0-116-lowlatency-64kUpgrade linux-image-gkeopUpgrade linux-image-5.15.0-1068-azureUpgrade linux-image-oem-20.04bUpgrade linux-image-oracle-64kUpgrade linux-image-oem-24.04aUpgrade linux-image-oem-osp1Upgrade linux-image-azure-cvmUpgrade linux-image-5.15.0-1065-gcpUpgrade linux-image-5.4.0-189-generic-lpaeUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-gcpUpgrade linux-image-nvidia-64kUpgrade linux-image-raspiUpgrade linux-image-6.8.0-1008-oracleUpgrade linux-image-5.15.0-1035-xilinx-zynqmpUpgrade linux-image-awsUpgrade linux-image-oem-20.04dUpgrade linux-image-5.4.0-1047-xilinx-zynqmpUpgrade linux-image-azure-fde-lts-22.04Upgrade linux-image-5.15.0-1062-kvmUpgrade linux-image-oem-24.04Upgrade linux-image-kvmUpgrade linux-image-6.8.0-1009-nvidiaUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-5.4.0-1075-ibmUpgrade linux-image-xilinx-zynqmpUpgrade linux-image-5.15.0-1064-gcpUpgrade linux-image-lowlatency-hwe-18.04Upgrade linux-image-5.4.0-1112-raspiUpgrade linux-image-5.15.0-116-lowlatencyUpgrade linux-image-5.15.0-1060-nvidiaUpgrade linux-image-generic-hwe-18.04Upgrade linux-image-6.8.0-1008-oracle-64kUpgrade linux-image-oem-20.04cUpgrade linux-image-5.15.0-1058-raspiUpgrade linux-image-azureUpgrade linux-image-5.15.0-1065-awsUpgrade linux-image-5.15.0-1060-nvidia-lowlatencyUpgrade linux-image-5.4.0-1128-awsUpgrade linux-image-5.4.0-1040-iotUpgrade linux-image-virtual-hwe-18.04Upgrade linux-image-oracle-lts-22.04Upgrade linux-image-gkeop-5.15Upgrade linux-image-5.15.0-1068-azure-fdeUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-oem-20.04Upgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-5.4.0-189-genericUpgrade linux-image-6.8.0-38-genericUpgrade linux-image-6.8.0-1007-raspiUpgrade linux-image-5.15.0-1063-oracleUpgrade linux-image-5.4.0-1095-gkeopUpgrade linux-image-5.4.0-1088-bluefieldUpgrade linux-image-5.4.0-1133-azureUpgrade linux-image-5.15.0-1062-gkeUpgrade linux-image-gkeUpgrade linux-image-oracleUpgrade linux-image-5.15.0-1058-ibmUpgrade linux-image-5.4.0-1116-kvmUpgrade linux-image-oemUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-generic-hwe-24.04Upgrade linux-image-raspi-hwe-18.04Upgrade linux-image-generic-hwe-20.04Upgrade linux-image-6.8.0-1010-azure | Jul 12, 2024 | May 19, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | May 19, 2024 |
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