f2fs: avoid format-overflow warning
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.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.10.202, 5.15.140, 6.1.64, 6.5.13, 6.6.3
- CVEs
- CVE-2023-52748
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 20:03 UTC · Revision 1
Source evidence
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.
osv:CVE-2023-52748
Kernel
Fixed versions: 5.10.202, 5.15.140, 6.1.64, 6.5.13, 6.6.3
Complete source record
{
"id": "24b3a490f56b057ef621dd4ccb0c474074017064543d5989fed234488aa5937f",
"url": "https://osv.dev/vulnerability/CVE-2023-52748",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "f2fs: avoid format-overflow warning",
"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.",
"evidence": "osv:CVE-2023-52748",
"products": [
{
"name": {
"value": "Kernel",
"evidence": "/affected/1/package/name"
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"prerequisites": [],
"fixed_versions": [
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"value": "5.10.202",
"evidence": "/affected/1/ranges"
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{
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"evidence": "/affected/1/ranges"
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{
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{
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"evidence": "/affected/1/ranges"
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"affected_versions": []
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"severity": "unknown",
"structured": {
"id": "CVE-2023-52748",
"aliases": [
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"affected": [
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{
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{
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{
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"package": {
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],
"modified": "2026-10-28T02:30:39.217698267Z",
"provider": "osv",
"references": [
"https://git.kernel.org/stable/c/3eebe636cac53886bd5d1cdd55e082ec9e84983f",
"https://git.kernel.org/stable/c/526dd7540a09ecf87b5f54f3ab4e0a2528f25a79",
"https://git.kernel.org/stable/c/6fca08fd3085253b48fcb1bd243a0a5e18821a00",
"https://git.kernel.org/stable/c/c041f5ddef00c731c541e00bc8ae97b8c84c682f",
"https://git.kernel.org/stable/c/e0d4e8acb3789c5a8651061fbab62ca24a45c063",
"https://git.kernel.org/stable/c/e4088d7d8f1123006d46a42edf51b8c960a58ef9",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52748.json",
"https://nvd.nist.gov/vuln/detail/CVE-2023-52748",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
],
"provider_metadata": {
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"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52748.json"
}
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"related_cves": [
{
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"evidence": "/id"
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"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 506469,
"published_at": "2024-05-21T15:30:38.229+00:00"
}