| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\njfs: fix slab-out-of-bounds read in ea_get()\n\nDuring the \"size_check\" label in ea_get(), the code checks if the extended\nattribute list (xattr) size matches ea_size. If not, it logs\n\"ea_get: invalid extended attribute\" and calls print_hex_dump().\n\nHere, EALIST_SIZE(ea_buf->xattr) returns 4110417968, which exceeds\nINT_MAX (2,147,483,647). Then ea_size is clamped:\n\n\tint size = clamp_t(int, ea_size, 0, EALIST_SIZE(ea_buf->xattr));\n\nAlthough clamp_t aims to bound ea_size between 0 and 4110417968, the upper\nlimit is treated as an int, causing an overflow above 2^31 - 1. This leads\n\"size\" to wrap around and become negative (-184549328).\n\nThe \"size\" is then passed to print_hex_dump() (called \"len\" in\nprint_hex_dump()), it is passed as type size_t (an unsigned\ntype), this is then stored inside a variable called\n\"int remaining\", which is then assigned to \"int linelen\" which\nis then passed to hex_dump_to_buffer(). In print_hex_dump()\nthe for loop, iterates through 0 to len-1, where len is\n18446744073525002176, calling hex_dump_to_buffer()\non each iteration:\n\n\tfor (i = 0; i < len; i += rowsize) {\n\t\tlinelen = min(remaining, rowsize);\n\t\tremaining -= rowsize;\n\n\t\thex_dump_to_buffer(ptr + i, linelen, rowsize, groupsize,\n\t\t\t\t linebuf, sizeof(linebuf), ascii);\n\n\t\t...\n\t}\n\nThe expected stopping condition (i < len) is effectively broken\nsince len is corrupted and very large. This eventually leads to\nthe \"ptr+i\" being passed to hex_dump_to_buffer() to get closer\nto the end of the actual bounds of \"ptr\", eventually an out of\nbounds access is done in hex_dump_to_buffer() in the following\nfor loop:\n\n\tfor (j = 0; j < len; j++) {\n\t\t\tif (linebuflen < lx + 2)\n\t\t\t\tgoto overflow2;\n\t\t\tch = ptr[j];\n\t\t...\n\t}\n\nTo fix this we should validate \"EALIST_SIZE(ea_buf->xattr)\"\nbefore it is utilised." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "fs/jfs/xattr.c" |
| ], |
| "versions": [ |
| { |
| "version": "6e39b681d1eb16f408493bf5023788b57f68998c", |
| "lessThan": "3d6fd5b9c6acbc005e53d0211c7381f566babec1", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "bbf3f1fd8a0ac7df1db36a9b9e923041a14369f2", |
| "lessThan": "50afcee7011155933d8d5e8832f52eeee018cfd3", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "27a93c45e16ac25a0e2b5e5668e2d1beca56a478", |
| "lessThan": "78c9cbde8880ec02d864c166bcb4fe989ce1d95f", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "9c356fc32a4480a2c0e537a05f2a8617633ddad0", |
| "lessThan": "46e2c031aa59ea65128991cbca474bd5c0c2ecdb", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "9353cdf28d4c5c0ff19c5df7fbf81ea774de43a4", |
| "lessThan": "a8c31808925b11393a6601f534bb63bac5366bab", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "8c505ebeed8045b488b2e60b516c752b851f8437", |
| "lessThan": "0beddc2a3f9b9cf7d8887973041e36c2d0fa3652", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "d9f9d96136cba8fedd647d2c024342ce090133c2", |
| "lessThan": "16d3d36436492aa248b2d8045e75585ebcc2f34d", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "d9f9d96136cba8fedd647d2c024342ce090133c2", |
| "lessThan": "5263822558a8a7c0d0248d5679c2dcf4d5cda61f", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "d9f9d96136cba8fedd647d2c024342ce090133c2", |
| "lessThan": "fdf480da5837c23b146c4743c18de97202fcab37", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "4ea25fa8747fb8b1e5a11d87b852023ecf7ae420", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "676a787048aafd4d1b38a522b05a9cc77e1b0a33", |
| "status": "affected", |
| "versionType": "git" |
| } |
| ] |
| }, |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "fs/jfs/xattr.c" |
| ], |
| "versions": [ |
| { |
| "version": "6.13", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "6.13", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.4.292", |
| "lessThanOrEqual": "5.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.236", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.15.180", |
| "lessThanOrEqual": "5.15.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.1.134", |
| "lessThanOrEqual": "6.1.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.6.87", |
| "lessThanOrEqual": "6.6.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.12.23", |
| "lessThanOrEqual": "6.12.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.13.11", |
| "lessThanOrEqual": "6.13.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.14.2", |
| "lessThanOrEqual": "6.14.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.15", |
| "lessThanOrEqual": "*", |
| "status": "unaffected", |
| "versionType": "original_commit_for_fix" |
| } |
| ] |
| } |
| ], |
| "cpeApplicability": [ |
| { |
| "nodes": [ |
| { |
| "operator": "OR", |
| "negate": false, |
| "cpeMatch": [ |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.4.287", |
| "versionEndExcluding": "5.4.292" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.10.231", |
| "versionEndExcluding": "5.10.236" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.15.174", |
| "versionEndExcluding": "5.15.180" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.1.120", |
| "versionEndExcluding": "6.1.134" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.6.64", |
| "versionEndExcluding": "6.6.87" |
| }, |
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| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.12.2", |
| "versionEndExcluding": "6.12.23" |
| }, |
| { |
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| "versionEndExcluding": "6.13.11" |
| }, |
| { |
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| "versionEndExcluding": "6.14.2" |
| }, |
| { |
| "vulnerable": true, |
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| "versionStartIncluding": "6.13", |
| "versionEndExcluding": "6.15" |
| }, |
| { |
| "vulnerable": true, |
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| "versionStartIncluding": "4.19.325" |
| }, |
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| "versionStartIncluding": "6.11.11" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/3d6fd5b9c6acbc005e53d0211c7381f566babec1" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/50afcee7011155933d8d5e8832f52eeee018cfd3" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/78c9cbde8880ec02d864c166bcb4fe989ce1d95f" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/46e2c031aa59ea65128991cbca474bd5c0c2ecdb" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/a8c31808925b11393a6601f534bb63bac5366bab" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/0beddc2a3f9b9cf7d8887973041e36c2d0fa3652" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/16d3d36436492aa248b2d8045e75585ebcc2f34d" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/5263822558a8a7c0d0248d5679c2dcf4d5cda61f" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/fdf480da5837c23b146c4743c18de97202fcab37" |
| } |
| ], |
| "title": "jfs: fix slab-out-of-bounds read in ea_get()", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2025-39735", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
