cbcvebase.
CVE-2024-48881
published 2025-01-11

CVE-2024-48881: In the Linux kernel, the following vulnerability has been resolved: bcache: revert replacing IS_ERR_OR_NULL with IS_ERR again Commit 028ddcac477b ("bcache…

PriorityP422medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.25%
16.0th percentile
In the Linux kernel, the following vulnerability has been resolved: bcache: revert replacing IS_ERR_OR_NULL with IS_ERR again Commit 028ddcac477b ("bcache: Remove unnecessary NULL point check in node allocations") leads a NULL pointer deference in cache_set_flush(). 1721 if (!IS_ERR_OR_NULL(c->root)) 1722 list_add(&c->root->list, &c->btree_cache); >From the above code in cache_set_flush(), if previous registration code fails before allocating c->root, it is possible c->root is NULL as what it is initialized. __bch_btree_node_alloc() never returns NULL but c->root is possible to be NULL at above line 1721. This patch replaces IS_ERR() by IS_ERR_OR_NULL() to fix this.

Affected

33 ranges· showing 25
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.123-1 (bookworm)linux 6.1.123-1 (bookworm)
debianlinux-6.1< linux 6.1.123-1 (bookworm)linux 6.1.123-1 (bookworm)
linuxlinux
linuxlinux
linuxlinux
linuxlinux>= 028ddcac477b691dd9205c92f991cc15259d033e < cc05aa2c0117e20fa25a3c0d915f98b8f2e78667cc05aa2c0117e20fa25a3c0d915f98b8f2e78667
linuxlinux>= 028ddcac477b691dd9205c92f991cc15259d033e < 5e0e913624bcd24f3de414475018d3023f060ee15e0e913624bcd24f3de414475018d3023f060ee1
linuxlinux>= 028ddcac477b691dd9205c92f991cc15259d033e < b2e382ae12a63560fca35050498e19e760adf8c0b2e382ae12a63560fca35050498e19e760adf8c0
linuxlinux>= 0729029e647234fa1a94376b6edffec5c2cd75f6 < 4379c5828492a4c2a651c8f826a01453bd2b80b04379c5828492a4c2a651c8f826a01453bd2b80b0
linuxlinux>= 4.19.291 < 4.204.20
linuxlinux>= 5.10.188 < 5.10.2315.10.231
linuxlinux>= 5.15.121 < 5.15.1745.15.174
linuxlinux>= 5.4.251 < 5.4.2875.4.287
linuxlinux>= 6.1.39 < 6.1.1206.1.120
linuxlinux>= 6.4.4 < 6.56.5
linuxlinux>= 68118c339c6e1e16ae017bef160dbe28a27ae9c8 < 5202391970ffbf81975251b3526b890ba027b7155202391970ffbf81975251b3526b890ba027b715
linuxlinux>= 991e9c186a8ac6ab272a86e0ddc6f9733c38b867 < fb5fee35bdd18316a84b5f30881a24e1415e1464fb5fee35bdd18316a84b5f30881a24e1415e1464
linuxlinux>= db9439cef0b5efccf8021fe89f4953e0f901e85b < 336e30f32ae7c043fde0f6fa21586ff30bea9fe2336e30f32ae7c043fde0f6fa21586ff30bea9fe2
linuxlinux_kernel
linuxlinux_kernel>= 0 < 5.10.234-15.10.234-1
linuxlinux_kernel>= 0 < 6.1.123-16.1.123-1
linuxlinux_kernel>= 0 < 6.12.5-16.12.5-1
linuxlinux_kernel>= 0 < 6.12.5-16.12.5-1
linuxlinux_kernel>= 0 < 5.4.0-211.2315.4.0-211.231
linuxlinux_kernel>= 0 < 5.15.0-135.1465.15.0-135.146

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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