CVE-2023-53484
published 2025-10-01CVE-2023-53484: In the Linux kernel, the following vulnerability has been resolved: lib: cpu_rmap: Avoid use after free on rmap->obj array entries When calling…
PriorityP339high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.15%
4.6th percentile
In the Linux kernel, the following vulnerability has been resolved:
lib: cpu_rmap: Avoid use after free on rmap->obj array entries
When calling irq_set_affinity_notifier() with NULL at the notify
argument, it will cause freeing of the glue pointer in the
corresponding array entry but will leave the pointer in the array. A
subsequent call to free_irq_cpu_rmap() will try to free this entry again
leading to possible use after free.
Fix that by setting NULL to the array entry and checking that we have
non-zero at the array entry when iterating over the array in
free_irq_cpu_rmap().
The current code does not suffer from this since there are no cases
where irq_set_affinity_notifier(irq, NULL) (note the NULL passed for the
notify arg) is called, followed by a call to free_irq_cpu_rmap() so we
don't hit and issue. Subsequent patches in this series excersize this
flow, hence the required fix.
Affected
22 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.37-1 (bookworm) | linux 6.1.37-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 896f97ea95c1d29c0520ee0766b66b7f64cb967c < 981f339d2905b6a92ef59358158b326493aecac5 | 981f339d2905b6a92ef59358158b326493aecac5 |
| linux | linux | >= 896f97ea95c1d29c0520ee0766b66b7f64cb967c < d1308bd0b24cb1d78fa2747d5fa3e055cc628a48 | d1308bd0b24cb1d78fa2747d5fa3e055cc628a48 |
| linux | linux | >= 896f97ea95c1d29c0520ee0766b66b7f64cb967c < cc2d2b3dbfb0ba57bc027fb7e1121250c50e4000 | cc2d2b3dbfb0ba57bc027fb7e1121250c50e4000 |
| linux | linux | >= 896f97ea95c1d29c0520ee0766b66b7f64cb967c < f748e15253833b771acbede14ea98f50831ac289 | f748e15253833b771acbede14ea98f50831ac289 |
| linux | linux | >= 896f97ea95c1d29c0520ee0766b66b7f64cb967c < c6ed54dd90698dc0744d669524cc1c122ded8a16 | c6ed54dd90698dc0744d669524cc1c122ded8a16 |
| linux | linux | >= 896f97ea95c1d29c0520ee0766b66b7f64cb967c < c9115f49cf260d24d8b5f2d9a4b63cb31a627bb4 | c9115f49cf260d24d8b5f2d9a4b63cb31a627bb4 |
| linux | linux | >= 896f97ea95c1d29c0520ee0766b66b7f64cb967c < 67bca5f1d644f4e79b694abd8052a177de81c37f | 67bca5f1d644f4e79b694abd8052a177de81c37f |
| linux | linux | >= 896f97ea95c1d29c0520ee0766b66b7f64cb967c < 4e0473f1060aa49621d40a113afde24818101d37 | 4e0473f1060aa49621d40a113afde24818101d37 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.191-1 | 5.10.191-1 |
| linux | linux_kernel | >= 0 < 6.1.37-1 | 6.1.37-1 |
| linux | linux_kernel | >= 0 < 6.3.7-1 | 6.3.7-1 |
| linux | linux_kernel | >= 0 < 6.3.7-1 | 6.3.7-1 |
| linux | linux_kernel | >= 3.8.1 < 4.14.316 | 4.14.316 |
| linux | linux_kernel | >= 4.15 < 4.19.284 | 4.19.284 |
| linux | linux_kernel | >= 4.20 < 5.4.244 | 5.4.244 |
| linux | linux_kernel | >= 5.11 < 5.15.113 | 5.15.113 |
| linux | linux_kernel | >= 5.16 < 6.1.30 | 6.1.30 |
| linux | linux_kernel | >= 5.5 < 5.10.181 | 5.10.181 |
| linux | linux_kernel | >= 6.2 < 6.3.4 | 6.3.4 |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
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OSV
CVE-2023-53484: In the Linux kernel, the following vulnerability has been resolved: lib: cpu_rmap: Avoid use after free on rmap->obj array entries When calling irq_se
osv·2025-10-01·CVSS 7.8
CVE-2023-53484 [HIGH] CVE-2023-53484: In the Linux kernel, the following vulnerability has been resolved: lib: cpu_rmap: Avoid use after free on rmap->obj array entries When calling irq_se
In the Linux kernel, the following vulnerability has been resolved: lib: cpu_rmap: Avoid use after free on rmap->obj array entries When calling irq_set_affinity_notifier() with NULL at the notify argument, it will cause freeing of the glue pointer in the corresponding array entry but will leave the pointer in the array. A subsequent call to free_irq_cpu_rmap() will try to free this entry again leading to possible use after free. Fix that by setting NULL to the array entry and checking that we have non-zero at the array entry when iterating over the array in free_irq_cpu_rmap(). The current code does not suffer from this since there are no cases where irq_set_affinity_notifier(irq, NULL) (note the NULL passed for the notify arg) is called, followed by a call to free_irq_cpu_rmap() so we don
GHSA
GHSA-9598-2w9x-r9v4: In the Linux kernel, the following vulnerability has been resolved:
lib: cpu_rmap: Avoid use after free on rmap->obj array entries
When calling irq_
ghsa_unreviewed·2025-10-01
CVE-2023-53484 [HIGH] CWE-416 GHSA-9598-2w9x-r9v4: In the Linux kernel, the following vulnerability has been resolved:
lib: cpu_rmap: Avoid use after free on rmap->obj array entries
When calling irq_
In the Linux kernel, the following vulnerability has been resolved:
lib: cpu_rmap: Avoid use after free on rmap->obj array entries
When calling irq_set_affinity_notifier() with NULL at the notify
argument, it will cause freeing of the glue pointer in the
corresponding array entry but will leave the pointer in the array. A
subsequent call to free_irq_cpu_rmap() will try to free this entry again
leading to possible use after free.
Fix that by setting NULL to the array entry and checking that we have
non-zero at the array entry when iterating over the array in
free_irq_cpu_rmap().
The current code does not suffer from this since there are no cases
where irq_set_affinity_notifier(irq, NULL) (note the NULL passed for the
notify arg) is called, followed by a call to free_irq_cpu_rmap() so we
Red Hat
kernel: lib: cpu_rmap: Avoid use after free on rmap->obj array entries
vendor_redhat·2025-10-01·CVSS 7.8
CVE-2023-53484 [HIGH] CWE-664 kernel: lib: cpu_rmap: Avoid use after free on rmap->obj array entries
kernel: lib: cpu_rmap: Avoid use after free on rmap->obj array entries
In the Linux kernel, the following vulnerability has been resolved:
lib: cpu_rmap: Avoid use after free on rmap->obj array entries
When calling irq_set_affinity_notifier() with NULL at the notify
argument, it will cause freeing of the glue pointer in the
corresponding array entry but will leave the pointer in the array. A
subsequent call to free_irq_cpu_rmap() will try to free this entry again
leading to possible use after free.
Fix that by setting NULL to the array entry and checking that we have
non-zero at the array entry when iterating over the array in
free_irq_cpu_rmap().
The current code does not suffer from this since there are no cases
where irq_set_affinity_notifier(irq, NULL) (note the NULL passed for the
no
Debian
CVE-2023-53484: linux - In the Linux kernel, the following vulnerability has been resolved: lib: cpu_rm...
vendor_debian·2023·CVSS 7.8
CVE-2023-53484 [HIGH] CVE-2023-53484: linux - In the Linux kernel, the following vulnerability has been resolved: lib: cpu_rm...
In the Linux kernel, the following vulnerability has been resolved: lib: cpu_rmap: Avoid use after free on rmap->obj array entries When calling irq_set_affinity_notifier() with NULL at the notify argument, it will cause freeing of the glue pointer in the corresponding array entry but will leave the pointer in the array. A subsequent call to free_irq_cpu_rmap() will try to free this entry again leading to possible use after free. Fix that by setting NULL to the array entry and checking that we have non-zero at the array entry when iterating over the array in free_irq_cpu_rmap(). The current code does not suffer from this since there are no cases where irq_set_affinity_notifier(irq, NULL) (note the NULL passed for the notify arg) is called, followed by a call to free_irq_cpu_rmap() so we don
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/4e0473f1060aa49621d40a113afde24818101d37https://git.kernel.org/stable/c/67bca5f1d644f4e79b694abd8052a177de81c37fhttps://git.kernel.org/stable/c/981f339d2905b6a92ef59358158b326493aecac5https://git.kernel.org/stable/c/c6ed54dd90698dc0744d669524cc1c122ded8a16https://git.kernel.org/stable/c/c9115f49cf260d24d8b5f2d9a4b63cb31a627bb4https://git.kernel.org/stable/c/cc2d2b3dbfb0ba57bc027fb7e1121250c50e4000https://git.kernel.org/stable/c/d1308bd0b24cb1d78fa2747d5fa3e055cc628a48https://git.kernel.org/stable/c/f748e15253833b771acbede14ea98f50831ac289
2025-10-01
Published