CVE-2023-52748

Summary

In the Linux kernel, the following vulnerability has been resolved:

f2fs: avoid format-overflow warning

With gcc and W=1 option, there's a warning like this:

fs/f2fs/compress.c: In function ‘f2fs_init_page_array_cache’: fs/f2fs/compress.c:1984:47: error: ‘%u’ directive writing between 1 and 7 bytes into a region of size between 5 and 8 [-Werror=format-overflow=] 1984 | sprintf(slab_name, "f2fs_page_array_entry-%u:%u", MAJOR(dev), MINOR(dev)); | ^~

String "f2fs_page_array_entry-%u:%u" can up to 35. The first "%u" can up to 4 and the second "%u" can up to 7, so total size is "24 + 4 + 7 = 35". slab_name's size should be 35 rather than 32.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux31083031709eea6530f0551d59eecdb2e68265ef < c041f5ddef00c731c541e00bc8ae97b8c84c682faffected
LinuxLinux31083031709eea6530f0551d59eecdb2e68265ef < e4088d7d8f1123006d46a42edf51b8c960a58ef9affected
LinuxLinux31083031709eea6530f0551d59eecdb2e68265ef < 526dd7540a09ecf87b5f54f3ab4e0a2528f25a79affected
LinuxLinux31083031709eea6530f0551d59eecdb2e68265ef < 6fca08fd3085253b48fcb1bd243a0a5e18821a00affected
LinuxLinux31083031709eea6530f0551d59eecdb2e68265ef < 3eebe636cac53886bd5d1cdd55e082ec9e84983faffected
LinuxLinux31083031709eea6530f0551d59eecdb2e68265ef < e0d4e8acb3789c5a8651061fbab62ca24a45c063affected
LinuxLinux5.10affected
LinuxLinux0 < 5.10unaffected
LinuxLinux5.10.202 <= 5.10.*unaffected
LinuxLinux5.15.140 <= 5.15.*unaffected
LinuxLinux6.1.64 <= 6.1.*unaffected
LinuxLinux6.5.13 <= 6.5.*unaffected
LinuxLinux6.6.3 <= 6.6.*unaffected
LinuxLinux6.7 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References