CVE-2022-49053
published 2025-02-26CVE-2022-49053: In the Linux kernel, the following vulnerability has been resolved: scsi: target: tcmu: Fix possible page UAF tcmu_try_get_data_page() looks up pages under…
PriorityP337high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.28%
19.9th percentile
In the Linux kernel, the following vulnerability has been resolved:
scsi: target: tcmu: Fix possible page UAF
tcmu_try_get_data_page() looks up pages under cmdr_lock, but it does not
take refcount properly and just returns page pointer. When
tcmu_try_get_data_page() returns, the returned page may have been freed by
tcmu_blocks_release().
We need to get_page() under cmdr_lock to avoid concurrent
tcmu_blocks_release().
Affected
20 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.17.6-1 (bookworm) | linux 5.17.6-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 141685a39151aea95eb56562d2953e919c6c73da < d7c5d79e50be6e06b669141e3db1f977a0dd4e8e | d7c5d79e50be6e06b669141e3db1f977a0dd4e8e |
| linux | linux | >= 141685a39151aea95eb56562d2953e919c6c73da < e3e0e067d5b34e4a68e3cc55f8eebc413f56f8ed | e3e0e067d5b34e4a68e3cc55f8eebc413f56f8ed |
| linux | linux | >= 141685a39151aea95eb56562d2953e919c6c73da < fb7a5115422fbd6a4d505e8844f1ef5529f10489 | fb7a5115422fbd6a4d505e8844f1ef5529f10489 |
| linux | linux | >= 141685a39151aea95eb56562d2953e919c6c73da < aec36b98a1bbaa84bfd8299a306e4c12314af626 | aec36b98a1bbaa84bfd8299a306e4c12314af626 |
| linux | linux | >= 141685a39151aea95eb56562d2953e919c6c73da < b7f3b5d70c834f49f7d87a2f2ed1c6284d9a0322 | b7f3b5d70c834f49f7d87a2f2ed1c6284d9a0322 |
| linux | linux | >= 141685a39151aea95eb56562d2953e919c6c73da < a9564d84ed9f6ee71017d062d0d2182154294a4b | a9564d84ed9f6ee71017d062d0d2182154294a4b |
| linux | linux | >= 141685a39151aea95eb56562d2953e919c6c73da < a6968f7a367f128d120447360734344d5a3d5336 | a6968f7a367f128d120447360734344d5a3d5336 |
| linux | linux_kernel | < 4.14.276 | 4.14.276 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.113-1 | 5.10.113-1 |
| linux | linux_kernel | >= 0 < 5.17.6-1 | 5.17.6-1 |
| linux | linux_kernel | >= 0 < 5.17.6-1 | 5.17.6-1 |
| linux | linux_kernel | >= 0 < 5.17.6-1 | 5.17.6-1 |
| linux | linux_kernel | >= 4.15 < 4.19.239 | 4.19.239 |
| linux | linux_kernel | >= 4.20 < 5.4.190 | 5.4.190 |
| linux | linux_kernel | >= 5.11 < 5.15.35 | 5.15.35 |
| linux | linux_kernel | >= 5.16 < 5.17.4 | 5.17.4 |
| linux | linux_kernel | >= 5.5 < 5.10.112 | 5.10.112 |
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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GHSA
GHSA-r42x-vw8p-w99g: In the Linux kernel, the following vulnerability has been resolved:
scsi: target: tcmu: Fix possible page UAF
tcmu_try_get_data_page() looks up page
ghsa_unreviewed·2025-02-27
CVE-2022-49053 [HIGH] CWE-416 GHSA-r42x-vw8p-w99g: In the Linux kernel, the following vulnerability has been resolved:
scsi: target: tcmu: Fix possible page UAF
tcmu_try_get_data_page() looks up page
In the Linux kernel, the following vulnerability has been resolved:
scsi: target: tcmu: Fix possible page UAF
tcmu_try_get_data_page() looks up pages under cmdr_lock, but it does not
take refcount properly and just returns page pointer. When
tcmu_try_get_data_page() returns, the returned page may have been freed by
tcmu_blocks_release().
We need to get_page() under cmdr_lock to avoid concurrent
tcmu_blocks_release().
OSV
CVE-2022-49053: In the Linux kernel, the following vulnerability has been resolved: scsi: target: tcmu: Fix possible page UAF tcmu_try_get_data_page() looks up pages
osv·2025-02-26·CVSS 7.8
CVE-2022-49053 [HIGH] CVE-2022-49053: In the Linux kernel, the following vulnerability has been resolved: scsi: target: tcmu: Fix possible page UAF tcmu_try_get_data_page() looks up pages
In the Linux kernel, the following vulnerability has been resolved: scsi: target: tcmu: Fix possible page UAF tcmu_try_get_data_page() looks up pages under cmdr_lock, but it does not take refcount properly and just returns page pointer. When tcmu_try_get_data_page() returns, the returned page may have been freed by tcmu_blocks_release(). We need to get_page() under cmdr_lock to avoid concurrent tcmu_blocks_release().
Red Hat
kernel: scsi: target: tcmu: Fix possible page UAF
vendor_redhat·2025-02-26·CVSS 7.8
CVE-2022-49053 [HIGH] CWE-416 kernel: scsi: target: tcmu: Fix possible page UAF
kernel: scsi: target: tcmu: Fix possible page UAF
In the Linux kernel, the following vulnerability has been resolved:
scsi: target: tcmu: Fix possible page UAF
tcmu_try_get_data_page() looks up pages under cmdr_lock, but it does not
take refcount properly and just returns page pointer. When
tcmu_try_get_data_page() returns, the returned page may have been freed by
tcmu_blocks_release().
We need to get_page() under cmdr_lock to avoid concurrent
tcmu_blocks_release().
A flaw was found in the Linux kernel’s SCSI target core, specifically in the TCMU (Target Core User) subsystem. The function tcmu_try_get_data_page() failed to increment the reference count on memory pages it retrieves. This allowed a use-after-free condition if another thread freed the page via tcmu_blocks_release() while it
Debian
CVE-2022-49053: linux - In the Linux kernel, the following vulnerability has been resolved: scsi: targe...
vendor_debian·2022·CVSS 7.8
CVE-2022-49053 [HIGH] CVE-2022-49053: linux - In the Linux kernel, the following vulnerability has been resolved: scsi: targe...
In the Linux kernel, the following vulnerability has been resolved: scsi: target: tcmu: Fix possible page UAF tcmu_try_get_data_page() looks up pages under cmdr_lock, but it does not take refcount properly and just returns page pointer. When tcmu_try_get_data_page() returns, the returned page may have been freed by tcmu_blocks_release(). We need to get_page() under cmdr_lock to avoid concurrent tcmu_blocks_release().
Scope: local
bookworm: resolved (fixed in 5.17.6-1)
bullseye: resolved (fixed in 5.10.113-1)
forky: resolved (fixed in 5.17.6-1)
sid: resolved (fixed in 5.17.6-1)
trixie: resolved (fixed in 5.17.6-1)
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://git.kernel.org/stable/c/a6968f7a367f128d120447360734344d5a3d5336https://git.kernel.org/stable/c/a9564d84ed9f6ee71017d062d0d2182154294a4bhttps://git.kernel.org/stable/c/aec36b98a1bbaa84bfd8299a306e4c12314af626https://git.kernel.org/stable/c/b7f3b5d70c834f49f7d87a2f2ed1c6284d9a0322https://git.kernel.org/stable/c/d7c5d79e50be6e06b669141e3db1f977a0dd4e8ehttps://git.kernel.org/stable/c/e3e0e067d5b34e4a68e3cc55f8eebc413f56f8edhttps://git.kernel.org/stable/c/fb7a5115422fbd6a4d505e8844f1ef5529f10489
2025-02-26
Published