CVE-2023-54227

In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix tags leak when shrink nrhwqueues Although we don't need to realloc set-tags when shrink nrhwqueues, we need to free them. Or these tags will be leaked. How to reproduce: 1. mount -t configfs configfs /mnt 2. modprobe...

CVE-2023-54247

In the Linux kernel, the following vulnerability has been resolved: bpf: Silence a warning in btftypeidsize syzbot reported a warning in 1 with the following stacktrace: WARNING: CPU: 0 PID: 5005 at kernel/bpf/btf.c:1988 btftypeidsize+0x2d9/0x9d0 kernel/bpf/btf.c:1988 ... RIP:...

CVE-2023-54227

In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix tags leak when shrink nrhwqueues Although we don't need to realloc set-tags when shrink nrhwqueues, we need to free them. Or these tags will be leaked. How to reproduce: 1. mount -t configfs configfs /mnt 2. modprobe...

UBUNTU-CVE-2023-54227

In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix tags leak when shrink nrhwqueues Although we don't need to realloc set-tags when shrink nrhwqueues, we need to free them. Or these tags will be leaked. How to reproduce: 1. mount -t configfs configfs /mnt 2. modprobe...

UBUNTU-CVE-2022-50883

In the Linux kernel, the following vulnerability has been resolved: bpf: Prevent decltag from being referenced in funcproto arg Syzkaller managed to hit another decltag issue: btffuncprotocheck kernel/bpf/btf.c:4506 inline btfcheckalltypes kernel/bpf/btf.c:4734 inline btfparsetypesec+0x1175/0x198...

CVE-2022-50883

In the Linux kernel, the following vulnerability has been resolved: bpf: Prevent decltag from being referenced in funcproto arg Syzkaller managed to hit another decltag issue: btffuncprotocheck kernel/bpf/btf.c:4506 inline btfcheckalltypes kernel/bpf/btf.c:4734 inline btfparsetypesec+0x1175/0x198...

CVE-2022-50837

In the Linux kernel, the following vulnerability has been resolved: net: dsa: tag8021q: avoid leaking ctx on dsatag8021qregister error path If dsatag8021qsetup fails, for example due to the inability of the device to install a VLAN, the tag8021q context of the switch will leak. Make sure it is...

UBUNTU-CVE-2022-50837

In the Linux kernel, the following vulnerability has been resolved: net: dsa: tag8021q: avoid leaking ctx on dsatag8021qregister error path If dsatag8021qsetup fails, for example due to the inability of the device to install a VLAN, the tag8021q context of the switch will leak. Make sure it is...

CVE-2022-50837

In the Linux kernel, the following vulnerability has been resolved: net: dsa: tag8021q: avoid leaking ctx on dsatag8021qregister error path If dsatag8021qsetup fails, for example due to the inability of the device to install a VLAN, the tag8021q context of the switch will leak. Make sure it is...

CVE-2022-50883

In the Linux kernel, the following vulnerability has been resolved: bpf: Prevent decltag from being referenced in funcproto arg Syzkaller managed to hit another decltag issue: btffuncprotocheck kernel/bpf/btf.c:4506 inline btfcheckalltypes kernel/bpf/btf.c:4734 inline btfparsetypesec+0x1175/0x198...

CVE-2022-50883

CVE-2022-50883 concerns the Linux kernel, where a bpf-related vulnerability allowed a decl_tag to be referenced in a function prototype argument. The issue surfaces when parsing BTF/func_proto during bpf_btf_load and related paths, as Syzkaller traced an offending decl_tag usage through btf_func_...

CVE-2023-54247

CVE-2023-54247: In the Linux kernel, the BPF code silences a WARN_ON_ONCE in btf_type_id_size() when handling DECL_TAG by adding DECL_TAG to the btf_type_nosize set, causing btf_type_id_size() to return NULL earlier. This fixes a spurious warning without indicating a correctness issue; no exploit...

CVE-2023-54247 bpf: Silence a warning in btf_type_id_size()

In the Linux kernel, the following vulnerability has been resolved: bpf: Silence a warning in btftypeidsize syzbot reported a warning in 1 with the following stacktrace: WARNING: CPU: 0 PID: 5005 at kernel/bpf/btf.c:1988 btftypeidsize+0x2d9/0x9d0 kernel/bpf/btf.c:1988 ... RIP:...

CVE-2023-54247 bpf: Silence a warning in btf_type_id_size()

In the Linux kernel, the following vulnerability has been resolved: bpf: Silence a warning in btftypeidsize syzbot reported a warning in 1 with the following stacktrace: WARNING: CPU: 0 PID: 5005 at kernel/bpf/btf.c:1988 btftypeidsize+0x2d9/0x9d0 kernel/bpf/btf.c:1988 ... RIP:...

CVE-2022-50862

In the Linux kernel, the following vulnerability has been resolved: bpf: prevent decltag from being referenced in funcproto Syzkaller was able to hit the following issue: ------------ cut here ------------ WARNING: CPU: 0 PID: 3609 at kernel/bpf/btf.c:1946 btftypeidsize+0x2d5/0x9d0...

CVE-2022-50862 bpf: prevent decl_tag from being referenced in func_proto

In the Linux kernel, the following vulnerability has been resolved: bpf: prevent decltag from being referenced in funcproto Syzkaller was able to hit the following issue: ------------ cut here ------------ WARNING: CPU: 0 PID: 3609 at kernel/bpf/btf.c:1946 btftypeidsize+0x2d5/0x9d0...

CVE-2022-50862 bpf: prevent decl_tag from being referenced in func_proto

In the Linux kernel, the following vulnerability has been resolved: bpf: prevent decltag from being referenced in funcproto Syzkaller was able to hit the following issue: ------------ cut here ------------ WARNING: CPU: 0 PID: 3609 at kernel/bpf/btf.c:1946 btftypeidsize+0x2d5/0x9d0...

CVE-2023-54227 blk-mq: fix tags leak when shrink nr_hw_queues

In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix tags leak when shrink nrhwqueues Although we don't need to realloc set-tags when shrink nrhwqueues, we need to free them. Or these tags will be leaked. How to reproduce: 1. mount -t configfs configfs /mnt 2. modprobe...

CVE-2022-50837

In the Linux kernel, the following vulnerability has been resolved: net: dsa: tag8021q: avoid leaking ctx on dsatag8021qregister error path If dsatag8021qsetup fails, for example due to the inability of the device to install a VLAN, the tag8021q context of the switch will leak. Make sure it is...

CVE-2022-50837 net: dsa: tag_8021q: avoid leaking ctx on dsa_tag_8021q_register() error path

In the Linux kernel, the following vulnerability has been resolved: net: dsa: tag8021q: avoid leaking ctx on dsatag8021qregister error path If dsatag8021qsetup fails, for example due to the inability of the device to install a VLAN, the tag8021q context of the switch will leak. Make sure it is...