# CVE-2023-52559: linux: In the Linux kernel, the following vulnerability has been resolved:  iommu/vt-d: Avoid memory allocation in iommu_sus...

CVE-2023-52559 is fixed in 21 products on 1 platform, first by ALAS2023-2023-422, released October 30, 2023. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2023-52559
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0022
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Oct 30, 2023

## Description

In the Linux kernel, the following vulnerability has been resolved:  iommu/vt-d: Avoid memory allocation in iommu_suspend()  The iommu_suspend() syscore suspend callback is invoked with IRQ disabled. Allocating memory with the GFP_KERNEL flag may re-enable IRQs during the suspend callback, which can cause intermittent suspend/hibernation problems with the following kernel traces:  Calling iommu_suspend+0x0/0x1d0 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 15 at kernel/time/timekeeping.c:868 ktime_get+0x9b/0xb0 ... CPU: 0 PID: 15 Comm: rcu_preempt Tainted: G     U      E      6.3-intel #r1 RIP: 0010:ktime_get+0x9b/0xb0 ... Call Trace:  <IRQ>  tick_sched_timer+0x22/0x90  ? __pfx_tick_sched_timer+0x10/0x10  __hrtimer_run_queues+0x111/0x2b0  hrtimer_interrupt+0xfa/0x230  __sysvec_apic_timer_interrupt+0x63/0x140  sysvec_apic_timer_interrupt+0x7b/0xa0  </IRQ>  <TASK>  asm_sysvec_apic_timer_interrupt+0x1f/0x30 ... ------------[ cut here ]------------ Interrupts enabled after iommu_suspend+0x0/0x1d0 WARNING: CPU: 0 PID: 27420 at drivers/base/syscore.c:68 syscore_suspend+0x147/0x270 CPU: 0 PID: 27420 Comm: rtcwake Tainted: G     U  W   E      6.3-intel #r1 RIP: 0010:syscore_suspend+0x147/0x270 ... Call Trace:  <TASK>  hibernation_snapshot+0x25b/0x670  hibernate+0xcd/0x390  state_store+0xcf/0xe0  kobj_attr_store+0x13/0x30  sysfs_kf_write+0x3f/0x50  kernfs_fop_write_iter+0x128/0x200  vfs_write+0x1fd/0x3c0  ksys_write+0x6f/0xf0  __x64_sys_write+0x1d/0x30  do_syscall_64+0x3b/0x90  entry_SYSCALL_64_after_hwframe+0x72/0xdc  Given that only 4 words memory is needed, avoid the memory allocation in iommu_suspend().

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | bpftool amzn 2023 | 6.1.59-84.139.amzn2023 | [ALAS2023-2023-422](https://patchblox.com/security/data/fix/linux/alas2023-2023-422.md) | Oct 30, 2023 |
| Linux | bpftool-debuginfo amzn 2023 | 6.1.59-84.139.amzn2023 | [ALAS2023-2023-422](https://patchblox.com/security/data/fix/linux/alas2023-2023-422.md) | Oct 30, 2023 |
| Linux | kernel amzn 2023 | 6.1.59-84.139.amzn2023 | [ALAS2023-2023-422](https://patchblox.com/security/data/fix/linux/alas2023-2023-422.md) | Oct 30, 2023 |
| Linux | kernel-debuginfo amzn 2023 | 6.1.59-84.139.amzn2023 | [ALAS2023-2023-422](https://patchblox.com/security/data/fix/linux/alas2023-2023-422.md) | Oct 30, 2023 |
| Linux | kernel-debuginfo-common-aarch64 amzn 2023 | 6.1.59-84.139.amzn2023 | [ALAS2023-2023-422](https://patchblox.com/security/data/fix/linux/alas2023-2023-422.md) | Oct 30, 2023 |
| Linux | kernel-debuginfo-common-x86_64 amzn 2023 | 6.1.59-84.139.amzn2023 | [ALAS2023-2023-422](https://patchblox.com/security/data/fix/linux/alas2023-2023-422.md) | Oct 30, 2023 |
| Linux | kernel-devel amzn 2023 | 6.1.59-84.139.amzn2023 | [ALAS2023-2023-422](https://patchblox.com/security/data/fix/linux/alas2023-2023-422.md) | Oct 30, 2023 |
| Linux | kernel-headers amzn 2023 | 6.1.59-84.139.amzn2023 | [ALAS2023-2023-422](https://patchblox.com/security/data/fix/linux/alas2023-2023-422.md) | Oct 30, 2023 |
| Linux | kernel-libbpf amzn 2023 | 6.1.59-84.139.amzn2023 | [ALAS2023-2023-422](https://patchblox.com/security/data/fix/linux/alas2023-2023-422.md) | Oct 30, 2023 |
| Linux | kernel-libbpf-devel amzn 2023 | 6.1.59-84.139.amzn2023 | [ALAS2023-2023-422](https://patchblox.com/security/data/fix/linux/alas2023-2023-422.md) | Oct 30, 2023 |
| Linux | kernel-libbpf-static amzn 2023 | 6.1.59-84.139.amzn2023 | [ALAS2023-2023-422](https://patchblox.com/security/data/fix/linux/alas2023-2023-422.md) | Oct 30, 2023 |
| Linux | kernel-livepatch-6.1.59-84.139 amzn 2023 | 1.0-0.amzn2023 | [ALAS2023-2023-422](https://patchblox.com/security/data/fix/linux/alas2023-2023-422.md) | Oct 30, 2023 |
| Linux | kernel-modules-extra amzn 2023 | 6.1.59-84.139.amzn2023 | [ALAS2023-2023-422](https://patchblox.com/security/data/fix/linux/alas2023-2023-422.md) | Oct 30, 2023 |
| Linux | kernel-tools amzn 2023 | 6.1.59-84.139.amzn2023 | [ALAS2023-2023-422](https://patchblox.com/security/data/fix/linux/alas2023-2023-422.md) | Oct 30, 2023 |
| Linux | kernel-tools-debuginfo amzn 2023 | 6.1.59-84.139.amzn2023 | [ALAS2023-2023-422](https://patchblox.com/security/data/fix/linux/alas2023-2023-422.md) | Oct 30, 2023 |
| Linux | kernel-tools-devel amzn 2023 | 6.1.59-84.139.amzn2023 | [ALAS2023-2023-422](https://patchblox.com/security/data/fix/linux/alas2023-2023-422.md) | Oct 30, 2023 |
| Linux | linux Debian 12.15 (bookworm) | 6.1.64-1 | [DEBIAN-CVE-2023-52559](https://patchblox.com/security/data/fix/linux/debian-cve-2023-52559.md) | Mar 2, 2024 |
| Linux | linux Debian 13.5 (trixie) | 6.5.8-1 | [DEBIAN-CVE-2023-52559](https://patchblox.com/security/data/fix/linux/debian-cve-2023-52559.md) | Mar 2, 2024 |
| Linux | linux Debian 14 | 6.5.8-1 | [DEBIAN-CVE-2023-52559](https://patchblox.com/security/data/fix/linux/debian-cve-2023-52559.md) | Mar 2, 2024 |
| Linux | perf amzn 2023 | 6.1.59-84.139.amzn2023 | [ALAS2023-2023-422](https://patchblox.com/security/data/fix/linux/alas2023-2023-422.md) | Oct 30, 2023 |
| Linux | perf-debuginfo amzn 2023 | 6.1.59-84.139.amzn2023 | [ALAS2023-2023-422](https://patchblox.com/security/data/fix/linux/alas2023-2023-422.md) | Oct 30, 2023 |
| Linux | python3-perf amzn 2023 | 6.1.59-84.139.amzn2023 | [ALAS2023-2023-422](https://patchblox.com/security/data/fix/linux/alas2023-2023-422.md) | Oct 30, 2023 |
| Linux | python3-perf-debuginfo amzn 2023 | 6.1.59-84.139.amzn2023 | [ALAS2023-2023-422](https://patchblox.com/security/data/fix/linux/alas2023-2023-422.md) | Oct 30, 2023 |

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