cbcvebase.
CVE-2023-52852
published 2024-05-21

CVE-2023-52852: In the Linux kernel, the following vulnerability has been resolved: f2fs: compress: fix to avoid use-after-free on dic Call trace: __memcpy+0x128/0x250…

PriorityP337high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.24%
15.0th percentile
In the Linux kernel, the following vulnerability has been resolved: f2fs: compress: fix to avoid use-after-free on dic Call trace: __memcpy+0x128/0x250 f2fs_read_multi_pages+0x940/0xf7c f2fs_mpage_readpages+0x5a8/0x624 f2fs_readahead+0x5c/0x110 page_cache_ra_unbounded+0x1b8/0x590 do_sync_mmap_readahead+0x1dc/0x2e4 filemap_fault+0x254/0xa8c f2fs_filemap_fault+0x2c/0x104 __do_fault+0x7c/0x238 do_handle_mm_fault+0x11bc/0x2d14 do_mem_abort+0x3a8/0x1004 el0_da+0x3c/0xa0 el0t_64_sync_handler+0xc4/0xec el0t_64_sync+0x1b4/0x1b8 In f2fs_read_multi_pages(), once f2fs_decompress_cluster() was called if we hit cached page in compress_inode's cache, dic may be released, it needs break the loop rather than continuing it, in order to avoid accessing invalid dic pointer.

Affected

16 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.64-1 (bookworm)linux 6.1.64-1 (bookworm)
linuxlinux
linuxlinux
linuxlinux>= 5.13.19 < 5.145.14
linuxlinux>= 6ce19aff0b8cd386860855185c6cd79337fc4d2b < 8c4504cc0c64862740a6acb301e0cfa59580dbc58c4504cc0c64862740a6acb301e0cfa59580dbc5
linuxlinux>= 6ce19aff0b8cd386860855185c6cd79337fc4d2b < 9375ea7f269093d7c884857ae1f47633a91f429c9375ea7f269093d7c884857ae1f47633a91f429c
linuxlinux>= 6ce19aff0b8cd386860855185c6cd79337fc4d2b < 932ddb5c29e884cc6fac20417ece72ba4a35c401932ddb5c29e884cc6fac20417ece72ba4a35c401
linuxlinux>= 6ce19aff0b8cd386860855185c6cd79337fc4d2b < 9d065aa52b6ee1b06f9c4eca881c9b4425a12ba29d065aa52b6ee1b06f9c4eca881c9b4425a12ba2
linuxlinux>= 6ce19aff0b8cd386860855185c6cd79337fc4d2b < b0327c84e91a0f4f0abced8cb83ec86a7083f086b0327c84e91a0f4f0abced8cb83ec86a7083f086
linuxlinux_kernel>= 0 < 6.1.64-16.1.64-1
linuxlinux_kernel>= 0 < 6.6.8-16.6.8-1
linuxlinux_kernel>= 0 < 6.6.8-16.6.8-1
linuxlinux_kernel>= 5.13.19 < 5.15.1395.15.139
linuxlinux_kernel>= 5.16 < 6.1.636.1.63
linuxlinux_kernel>= 6.2 < 6.5.126.5.12
linuxlinux_kernel>= 6.6 < 6.6.26.6.2

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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