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CVE-2022-48925

Publication date 22 August 2024

Last updated 30 August 2024


Ubuntu priority

Cvss 3 Severity Score

7.8 · High

Score breakdown

In the Linux kernel, the following vulnerability has been resolved: RDMA/cma: Do not change route.addr.src_addr outside state checks If the state is not idle then resolve_prepare_src() should immediately fail and no change to global state should happen. However, it unconditionally overwrites the src_addr trying to build a temporary any address. For instance if the state is already RDMA_CM_LISTEN then this will corrupt the src_addr and would cause the test in cma_cancel_operation(): if (cma_any_addr(cma_src_addr(id_priv)) && !id_priv->cma_dev) Which would manifest as this trace from syzkaller: BUG: KASAN: use-after-free in __list_add_valid+0x93/0xa0 lib/list_debug.c:26 Read of size 8 at addr ffff8881546491e0 by task syz-executor.1/32204 CPU: 1 PID: 32204 Comm: syz-executor.1 Not tainted 5.12.0-rc8-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x141/0x1d7 lib/dump_stack.c:120 print_address_description.constprop.0.cold+0x5b/0x2f8 mm/kasan/report.c:232 __kasan_report mm/kasan/report.c:399 [inline] kasan_report.cold+0x7c/0xd8 mm/kasan/report.c:416 __list_add_valid+0x93/0xa0 lib/list_debug.c:26 __list_add include/linux/list.h:67 [inline] list_add_tail include/linux/list.h:100 [inline] cma_listen_on_all drivers/infiniband/core/cma.c:2557 [inline] rdma_listen+0x787/0xe00 drivers/infiniband/core/cma.c:3751 ucma_listen+0x16a/0x210 drivers/infiniband/core/ucma.c:1102 ucma_write+0x259/0x350 drivers/infiniband/core/ucma.c:1732 vfs_write+0x28e/0xa30 fs/read_write.c:603 ksys_write+0x1ee/0x250 fs/read_write.c:658 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae This is indicating that an rdma_id_private was destroyed without doing cma_cancel_listens(). Instead of trying to re-use the src_addr memory to indirectly create an any address derived from the dst build one explicitly on the stack and bind to that as any other normal flow would do. rdma_bind_addr() will copy it over the src_addr once it knows the state is valid. This is similar to commit bc0bdc5afaa7 ("RDMA/cma: Do not change route.addr.src_addr.ss_family")

Status

Package Ubuntu Release Status
linux 24.04 LTS noble
Not affected
22.04 LTS jammy
Not affected
20.04 LTS focal
Not affected
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty
Not affected
linux-allwinner-5.19 24.04 LTS noble Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-aws 24.04 LTS noble
Not affected
22.04 LTS jammy
Not affected
20.04 LTS focal
Not affected
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty
Not affected
linux-aws-5.0 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored
linux-aws-5.11 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-aws-5.13 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-aws-5.15 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Not affected
linux-aws-5.19 24.04 LTS noble Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-aws-5.3 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored
linux-aws-5.4 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Not affected
linux-aws-5.8 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-aws-6.2 24.04 LTS noble Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-aws-6.5 24.04 LTS noble Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-aws-fips 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
linux-aws-hwe 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
16.04 LTS xenial
Not affected
linux-azure 24.04 LTS noble
Not affected
22.04 LTS jammy
Not affected
20.04 LTS focal
Not affected
18.04 LTS bionic Ignored
16.04 LTS xenial
Not affected
14.04 LTS trusty
Not affected
linux-azure-4.15 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Not affected
linux-azure-5.11 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-azure-5.13 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-azure-5.15 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Not affected
linux-azure-5.19 24.04 LTS noble Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-azure-5.3 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored
linux-azure-5.4 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Not affected
linux-azure-5.8 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-azure-6.2 24.04 LTS noble Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-azure-6.5 24.04 LTS noble Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-azure-edge 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored
linux-azure-fde 24.04 LTS noble Not in release
22.04 LTS jammy
Not affected
20.04 LTS focal Ignored
linux-azure-fde-5.15 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Not affected
linux-azure-fde-5.19 24.04 LTS noble Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-azure-fde-6.2 24.04 LTS noble Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-azure-fips 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
linux-bluefield 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Not affected
linux-fips 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
linux-gcp 24.04 LTS noble
Not affected
22.04 LTS jammy
Not affected
20.04 LTS focal
Not affected
18.04 LTS bionic Ignored
16.04 LTS xenial
Not affected
linux-gcp-4.15 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Not affected
linux-gcp-5.11 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-gcp-5.13 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-gcp-5.15 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Not affected
linux-gcp-5.19 24.04 LTS noble Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-gcp-5.3 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored
linux-gcp-5.4 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Not affected
linux-gcp-5.8 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-gcp-6.2 24.04 LTS noble Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-gcp-6.5 24.04 LTS noble Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-gcp-fips 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
linux-gke 24.04 LTS noble
Not affected
22.04 LTS jammy
Not affected
20.04 LTS focal Ignored
linux-gke-4.15 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored
linux-gke-5.15 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-gke-5.4 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored
linux-gkeop 24.04 LTS noble Not in release
22.04 LTS jammy
Not affected
20.04 LTS focal
Not affected
linux-gkeop-5.15 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Not affected
linux-gkeop-5.4 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored
linux-hwe 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored
16.04 LTS xenial
Not affected
linux-hwe-5.11 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-hwe-5.13 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-hwe-5.15 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Not affected
linux-hwe-5.19 24.04 LTS noble Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-hwe-5.4 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Not affected
linux-hwe-5.8 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-hwe-6.2 24.04 LTS noble Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-hwe-6.5 24.04 LTS noble Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-hwe-6.8 24.04 LTS noble Not in release
22.04 LTS jammy
Not affected
20.04 LTS focal Not in release
linux-hwe-edge 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored
16.04 LTS xenial Ignored
linux-ibm 24.04 LTS noble
Not affected
22.04 LTS jammy
Not affected
20.04 LTS focal
Not affected
linux-ibm-5.15 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Not affected
linux-ibm-5.4 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Not affected
linux-intel 24.04 LTS noble
Not affected
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-intel-5.13 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-intel-iot-realtime 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-intel-iotg 24.04 LTS noble Not in release
22.04 LTS jammy
Not affected
20.04 LTS focal Not in release
linux-intel-iotg-5.15 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Fixed 5.15.0-1008.11~20.04.1
linux-iot 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Not affected
linux-kvm 24.04 LTS noble Not in release
22.04 LTS jammy
Not affected
20.04 LTS focal
Not affected
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
linux-lowlatency 24.04 LTS noble
Not affected
22.04 LTS jammy
Not affected
20.04 LTS focal Not in release
linux-lowlatency-hwe-5.15 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Not affected
linux-lowlatency-hwe-5.19 24.04 LTS noble Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-lowlatency-hwe-6.2 24.04 LTS noble Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-lowlatency-hwe-6.5 24.04 LTS noble Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-lowlatency-hwe-6.8 24.04 LTS noble Not in release
22.04 LTS jammy
Not affected
20.04 LTS focal Not in release
linux-lts-xenial 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
14.04 LTS trusty
Not affected
linux-nvidia 24.04 LTS noble
Not affected
22.04 LTS jammy
Not affected
20.04 LTS focal Not in release
linux-nvidia-6.2 24.04 LTS noble Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-nvidia-6.5 24.04 LTS noble Not in release
22.04 LTS jammy
Not affected
20.04 LTS focal Not in release
linux-nvidia-6.8 24.04 LTS noble Not in release
22.04 LTS jammy
Not affected
20.04 LTS focal Not in release
linux-nvidia-lowlatency 24.04 LTS noble
Not affected
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
linux-oem 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored
linux-oem-5.10 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-oem-5.13 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-oem-5.14 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-oem-5.17 24.04 LTS noble Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-oem-5.6 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-oem-6.0 24.04 LTS noble Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-oem-6.1 24.04 LTS noble Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-oem-6.5 24.04 LTS noble Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-oem-6.8 24.04 LTS noble
Not affected
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
linux-oracle 24.04 LTS noble
Not affected
22.04 LTS jammy
Not affected
20.04 LTS focal
Not affected
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
linux-oracle-5.0 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored
linux-oracle-5.11 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-oracle-5.13 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-oracle-5.15 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Not affected
linux-oracle-5.3 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Ignored
linux-oracle-5.4 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Not affected
linux-oracle-5.8 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-oracle-6.5 24.04 LTS noble Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-raspi 24.04 LTS noble
Not affected
22.04 LTS jammy
Not affected
20.04 LTS focal
Not affected
linux-raspi-5.4 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Not affected
linux-raspi-realtime 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-raspi2 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-realtime 24.04 LTS noble Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-riscv 24.04 LTS noble
Not affected
22.04 LTS jammy Ignored
20.04 LTS focal Ignored
linux-riscv-5.11 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-riscv-5.15 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Not affected
linux-riscv-5.19 24.04 LTS noble Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-riscv-5.8 24.04 LTS noble Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Ignored
linux-riscv-6.5 24.04 LTS noble Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-riscv-6.8 24.04 LTS noble Not in release
22.04 LTS jammy
Not affected
20.04 LTS focal Not in release
linux-starfive-5.19 24.04 LTS noble Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-starfive-6.2 24.04 LTS noble Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-starfive-6.5 24.04 LTS noble Not in release
22.04 LTS jammy Ignored
20.04 LTS focal Not in release
linux-xilinx-zynqmp 24.04 LTS noble Not in release
22.04 LTS jammy
Not affected
20.04 LTS focal
Not affected

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
linux

Severity score breakdown

Parameter Value
Base score 7.8 · High
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H