CVE-2021-47523
published 2024-05-24CVE-2021-47523: In the Linux kernel, the following vulnerability has been resolved: IB/hfi1: Fix leak of rcvhdrtail_dummy_kvaddr This buffer is currently allocated in…
PriorityP418medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.24%
14.9th percentile
In the Linux kernel, the following vulnerability has been resolved:
IB/hfi1: Fix leak of rcvhdrtail_dummy_kvaddr
This buffer is currently allocated in hfi1_init():
if (reinit)
ret = init_after_reset(dd);
else
ret = loadtime_init(dd);
if (ret)
goto done;
/* allocate dummy tail memory for all receive contexts */
dd->rcvhdrtail_dummy_kvaddr = dma_alloc_coherent(&dd->pcidev->dev,
sizeof(u64),
&dd->rcvhdrtail_dummy_dma,
GFP_KERNEL);
if (!dd->rcvhdrtail_dummy_kvaddr) {
dd_dev_err(dd, "cannot allocate dummy tail memory\n");
ret = -ENOMEM;
goto done;
}
The reinit triggered path will overwrite the old allocation and leak it.
Fix by moving the allocation to hfi1_alloc_devdata() and the deallocation
to hfi1_free_devdata().
Affected
12 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.15.15-1 (bookworm) | linux 5.15.15-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 46b010d3eeb8eb29c740c4ef09c666485f5c07e6 < 2c08271f4ed0e24633b3f81ceff61052b9d45efc | 2c08271f4ed0e24633b3f81ceff61052b9d45efc |
| linux | linux | >= 46b010d3eeb8eb29c740c4ef09c666485f5c07e6 < 834d0fb978643eaf09da425de197cc16a7c2761b | 834d0fb978643eaf09da425de197cc16a7c2761b |
| linux | linux | >= 46b010d3eeb8eb29c740c4ef09c666485f5c07e6 < 60a8b5a1611b4a26de4839ab9c1fc2a9cf3e17c1 | 60a8b5a1611b4a26de4839ab9c1fc2a9cf3e17c1 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.92-1 | 5.10.92-1 |
| linux | linux_kernel | >= 0 < 5.15.15-1 | 5.15.15-1 |
| linux | linux_kernel | >= 0 < 5.15.15-1 | 5.15.15-1 |
| linux | linux_kernel | >= 0 < 5.15.15-1 | 5.15.15-1 |
| linux | linux_kernel | >= 4.5 < 5.10.85 | 5.10.85 |
| linux | linux_kernel | >= 5.11 < 5.15.8 | 5.15.8 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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OSV
CVE-2021-47523: In the Linux kernel, the following vulnerability has been resolved: IB/hfi1: Fix leak of rcvhdrtail_dummy_kvaddr This buffer is currently allocated in
osv·2024-05-24·CVSS 5.5
CVE-2021-47523 [MEDIUM] CVE-2021-47523: In the Linux kernel, the following vulnerability has been resolved: IB/hfi1: Fix leak of rcvhdrtail_dummy_kvaddr This buffer is currently allocated in
In the Linux kernel, the following vulnerability has been resolved: IB/hfi1: Fix leak of rcvhdrtail_dummy_kvaddr This buffer is currently allocated in hfi1_init(): if (reinit) ret = init_after_reset(dd); else ret = loadtime_init(dd); if (ret) goto done; /* allocate dummy tail memory for all receive contexts */ dd->rcvhdrtail_dummy_kvaddr = dma_alloc_coherent(&dd->pcidev->dev, sizeof(u64), &dd->rcvhdrtail_dummy_dma, GFP_KERNEL); if (!dd->rcvhdrtail_dummy_kvaddr) { dd_dev_err(dd, "cannot allocate dummy tail memory\n"); ret = -ENOMEM; goto done; } The reinit triggered path will overwrite the old allocation and leak it. Fix by moving the allocation to hfi1_alloc_devdata() and the deallocation to hfi1_free_devdata().
Red Hat
kernel: IB/hfi1: Fix leak of rcvhdrtail_dummy_kvaddr
vendor_redhat·2024-05-24·CVSS 5.5
CVE-2021-47523 [MEDIUM] CWE-476 kernel: IB/hfi1: Fix leak of rcvhdrtail_dummy_kvaddr
kernel: IB/hfi1: Fix leak of rcvhdrtail_dummy_kvaddr
In the Linux kernel, the following vulnerability has been resolved:
IB/hfi1: Fix leak of rcvhdrtail_dummy_kvaddr
This buffer is currently allocated in hfi1_init():
if (reinit)
ret = init_after_reset(dd);
else
ret = loadtime_init(dd);
if (ret)
goto done;
/* allocate dummy tail memory for all receive contexts */
dd->rcvhdrtail_dummy_kvaddr = dma_alloc_coherent(&dd->pcidev->dev,
sizeof(u64),
&dd->rcvhdrtail_dummy_dma,
GFP_KERNEL);
if (!dd->rcvhdrtail_dummy_kvaddr) {
dd_dev_err(dd, "cannot allocate dummy tail memory\n");
ret = -ENOMEM;
goto done;
}
The reinit triggered path will overwrite the old allocation and leak it.
Fix by moving the allocation to hfi1_alloc_devdata() and the deallocation
to hfi1_free_devdata().
Package: kernel (Red Ha
Debian
CVE-2021-47523: linux - In the Linux kernel, the following vulnerability has been resolved: IB/hfi1: Fi...
vendor_debian·2021·CVSS 5.5
CVE-2021-47523 [MEDIUM] CVE-2021-47523: linux - In the Linux kernel, the following vulnerability has been resolved: IB/hfi1: Fi...
In the Linux kernel, the following vulnerability has been resolved: IB/hfi1: Fix leak of rcvhdrtail_dummy_kvaddr This buffer is currently allocated in hfi1_init(): if (reinit) ret = init_after_reset(dd); else ret = loadtime_init(dd); if (ret) goto done; /* allocate dummy tail memory for all receive contexts */ dd->rcvhdrtail_dummy_kvaddr = dma_alloc_coherent(&dd->pcidev->dev, sizeof(u64), &dd->rcvhdrtail_dummy_dma, GFP_KERNEL); if (!dd->rcvhdrtail_dummy_kvaddr) { dd_dev_err(dd, "cannot allocate dummy tail memory\n"); ret = -ENOMEM; goto done; } The reinit triggered path will overwrite the old allocation and leak it. Fix by moving the allocation to hfi1_alloc_devdata() and the deallocation to hfi1_free_devdata().
Scope: local
bookworm: resolved (fixed in 5.15.15-1)
bullseye: resolved (fixed
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/2c08271f4ed0e24633b3f81ceff61052b9d45efchttps://git.kernel.org/stable/c/60a8b5a1611b4a26de4839ab9c1fc2a9cf3e17c1https://git.kernel.org/stable/c/834d0fb978643eaf09da425de197cc16a7c2761bhttps://git.kernel.org/stable/c/2c08271f4ed0e24633b3f81ceff61052b9d45efchttps://git.kernel.org/stable/c/60a8b5a1611b4a26de4839ab9c1fc2a9cf3e17c1https://git.kernel.org/stable/c/834d0fb978643eaf09da425de197cc16a7c2761b
2024-05-24
Published