CVE-2023-53681
published 2025-10-07CVE-2023-53681: In the Linux kernel, the following vulnerability has been resolved: bcache: Fix __bch_btree_node_alloc to make the failure behavior consistent In some specific…
PriorityP418medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.14%
3.4th percentile
In the Linux kernel, the following vulnerability has been resolved:
bcache: Fix __bch_btree_node_alloc to make the failure behavior consistent
In some specific situations, the return value of __bch_btree_node_alloc
may be NULL. This may lead to a potential NULL pointer dereference in
caller function like a calling chain :
btree_split->bch_btree_node_alloc->__bch_btree_node_alloc.
Fix it by initializing the return value in __bch_btree_node_alloc.
Affected
19 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.52-1 (bookworm) | linux 6.1.52-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= cafe563591446cf80bfbc2fe3bc72a2e36cf1060 < 587b4e8bb5dac682f09280ab35db4632b29d5ac4 | 587b4e8bb5dac682f09280ab35db4632b29d5ac4 |
| linux | linux | >= cafe563591446cf80bfbc2fe3bc72a2e36cf1060 < b070f29a61436f6f8a2e3abc7ea4f4be81695198 | b070f29a61436f6f8a2e3abc7ea4f4be81695198 |
| linux | linux | >= cafe563591446cf80bfbc2fe3bc72a2e36cf1060 < a4405f6ee03323410d7b10966fd67b35f71b1944 | a4405f6ee03323410d7b10966fd67b35f71b1944 |
| linux | linux | >= cafe563591446cf80bfbc2fe3bc72a2e36cf1060 < f67b0e3081f2a24170280a33ac66f6b112083c03 | f67b0e3081f2a24170280a33ac66f6b112083c03 |
| linux | linux | >= cafe563591446cf80bfbc2fe3bc72a2e36cf1060 < 7ecea5ce3dc17339c280c75b58ac93d8c8620d9f | 7ecea5ce3dc17339c280c75b58ac93d8c8620d9f |
| linux | linux | >= cafe563591446cf80bfbc2fe3bc72a2e36cf1060 < 4514847aee18d9391a0cf3aad75d3567c72795a4 | 4514847aee18d9391a0cf3aad75d3567c72795a4 |
| linux | linux | >= cafe563591446cf80bfbc2fe3bc72a2e36cf1060 < 80fca8a10b604afad6c14213fdfd816c4eda3ee4 | 80fca8a10b604afad6c14213fdfd816c4eda3ee4 |
| linux | linux_kernel | >= 0 < 5.10.191-1 | 5.10.191-1 |
| linux | linux_kernel | >= 0 < 6.1.52-1 | 6.1.52-1 |
| linux | linux_kernel | >= 0 < 6.4.4-1 | 6.4.4-1 |
| linux | linux_kernel | >= 0 < 6.4.4-1 | 6.4.4-1 |
| linux | linux_kernel | >= 3.10 < 4.19.291 | 4.19.291 |
| linux | linux_kernel | >= 4.20 < 5.4.253 | 5.4.253 |
| linux | linux_kernel | >= 5.11 < 5.15.121 | 5.15.121 |
| linux | linux_kernel | >= 5.16 < 6.1.39 | 6.1.39 |
| linux | linux_kernel | >= 5.5 < 5.10.188 | 5.10.188 |
| linux | linux_kernel | >= 6.2 < 6.4.4 | 6.4.4 |
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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Red Hat
kernel: bcache: Fix __bch_btree_node_alloc to make the failure behavior consistent
vendor_redhat·2025-10-07·CVSS 5.5
CVE-2023-53681 [MEDIUM] kernel: bcache: Fix __bch_btree_node_alloc to make the failure behavior consistent
kernel: bcache: Fix __bch_btree_node_alloc to make the failure behavior consistent
In the Linux kernel, the following vulnerability has been resolved:
bcache: Fix __bch_btree_node_alloc to make the failure behavior consistent
In some specific situations, the return value of __bch_btree_node_alloc
may be NULL. This may lead to a potential NULL pointer dereference in
caller function like a calling chain :
btree_split->bch_btree_node_alloc->__bch_btree_node_alloc.
Fix it by initializing the return value in __bch_btree_node_alloc.
Package: kernel (Red Hat Enterprise Linux 10) - Not affected
Package: kernel (Red Hat Enterprise Linux 6) - Not affected
Package: kernel (Red Hat Enterprise Linux 7) - Not affected
Package: kernel-rt (Red Hat Enterprise Linux 7) - Not affected
Package: kernel (
Debian
CVE-2023-53681: linux - In the Linux kernel, the following vulnerability has been resolved: bcache: Fix...
vendor_debian·2023·CVSS 5.5
CVE-2023-53681 [MEDIUM] CVE-2023-53681: linux - In the Linux kernel, the following vulnerability has been resolved: bcache: Fix...
In the Linux kernel, the following vulnerability has been resolved: bcache: Fix __bch_btree_node_alloc to make the failure behavior consistent In some specific situations, the return value of __bch_btree_node_alloc may be NULL. This may lead to a potential NULL pointer dereference in caller function like a calling chain : btree_split->bch_btree_node_alloc->__bch_btree_node_alloc. Fix it by initializing the return value in __bch_btree_node_alloc.
Scope: local
bookworm: resolved (fixed in 6.1.52-1)
bullseye: resolved (fixed in 5.10.191-1)
forky: resolved (fixed in 6.4.4-1)
sid: resolved (fixed in 6.4.4-1)
trixie: resolved (fixed in 6.4.4-1)
GHSA
GHSA-7h48-rq2g-79x4: In the Linux kernel, the following vulnerability has been resolved:
bcache: Fix __bch_btree_node_alloc to make the failure behavior consistent
In so
ghsa_unreviewed·2025-10-07
CVE-2023-53681 [MEDIUM] CWE-476 GHSA-7h48-rq2g-79x4: In the Linux kernel, the following vulnerability has been resolved:
bcache: Fix __bch_btree_node_alloc to make the failure behavior consistent
In so
In the Linux kernel, the following vulnerability has been resolved:
bcache: Fix __bch_btree_node_alloc to make the failure behavior consistent
In some specific situations, the return value of __bch_btree_node_alloc
may be NULL. This may lead to a potential NULL pointer dereference in
caller function like a calling chain :
btree_split->bch_btree_node_alloc->__bch_btree_node_alloc.
Fix it by initializing the return value in __bch_btree_node_alloc.
OSV
CVE-2023-53681: In the Linux kernel, the following vulnerability has been resolved: bcache: Fix __bch_btree_node_alloc to make the failure behavior consistent In some
osv·2025-10-07·CVSS 5.5
CVE-2023-53681 [MEDIUM] CVE-2023-53681: In the Linux kernel, the following vulnerability has been resolved: bcache: Fix __bch_btree_node_alloc to make the failure behavior consistent In some
In the Linux kernel, the following vulnerability has been resolved: bcache: Fix __bch_btree_node_alloc to make the failure behavior consistent In some specific situations, the return value of __bch_btree_node_alloc may be NULL. This may lead to a potential NULL pointer dereference in caller function like a calling chain : btree_split->bch_btree_node_alloc->__bch_btree_node_alloc. Fix it by initializing the return value in __bch_btree_node_alloc.
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/4514847aee18d9391a0cf3aad75d3567c72795a4https://git.kernel.org/stable/c/587b4e8bb5dac682f09280ab35db4632b29d5ac4https://git.kernel.org/stable/c/7ecea5ce3dc17339c280c75b58ac93d8c8620d9fhttps://git.kernel.org/stable/c/80fca8a10b604afad6c14213fdfd816c4eda3ee4https://git.kernel.org/stable/c/a4405f6ee03323410d7b10966fd67b35f71b1944https://git.kernel.org/stable/c/b070f29a61436f6f8a2e3abc7ea4f4be81695198https://git.kernel.org/stable/c/f67b0e3081f2a24170280a33ac66f6b112083c03
2025-10-07
Published