ghsa-4rwf-mvg8-5p8w
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
FS:JFS:UBSAN:array-index-out-of-bounds in dbAdjTree
Syzkaller reported the following issue:
UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:2867:6
index 196694 is out of range for type 's8[1365]' (aka 'signed char[1365]')
CPU: 1 PID: 109 Comm: jfsCommit Not tainted 6.6.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
Call Trace:
The issue is caused when the value of lp becomes greater than CTLTREESIZE which is the max size of stree. Adding a simple check solves this issue.
Dave: As the function returns a void, good error handling would require a more intrusive code reorganization, so I modified Osama's patch at use WARN_ON_ONCE for lack of a cleaner option.
The patch is tested via syzbot.
{ "affected": [], "aliases": [ "CVE-2023-52604" ], "database_specific": { "cwe_ids": [ "CWE-129" ], "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2024-03-06T07:15:11Z", "severity": "HIGH" }, "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nFS:JFS:UBSAN:array-index-out-of-bounds in dbAdjTree\n\nSyzkaller reported the following issue:\n\nUBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:2867:6\nindex 196694 is out of range for type \u0027s8[1365]\u0027 (aka \u0027signed char[1365]\u0027)\nCPU: 1 PID: 109 Comm: jfsCommit Not tainted 6.6.0-rc3-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023\nCall Trace:\n \u003cTASK\u003e\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106\n ubsan_epilogue lib/ubsan.c:217 [inline]\n __ubsan_handle_out_of_bounds+0x11c/0x150 lib/ubsan.c:348\n dbAdjTree+0x474/0x4f0 fs/jfs/jfs_dmap.c:2867\n dbJoin+0x210/0x2d0 fs/jfs/jfs_dmap.c:2834\n dbFreeBits+0x4eb/0xda0 fs/jfs/jfs_dmap.c:2331\n dbFreeDmap fs/jfs/jfs_dmap.c:2080 [inline]\n dbFree+0x343/0x650 fs/jfs/jfs_dmap.c:402\n txFreeMap+0x798/0xd50 fs/jfs/jfs_txnmgr.c:2534\n txUpdateMap+0x342/0x9e0\n txLazyCommit fs/jfs/jfs_txnmgr.c:2664 [inline]\n jfs_lazycommit+0x47a/0xb70 fs/jfs/jfs_txnmgr.c:2732\n kthread+0x2d3/0x370 kernel/kthread.c:388\n ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147\n ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304\n \u003c/TASK\u003e\n================================================================================\nKernel panic - not syncing: UBSAN: panic_on_warn set ...\nCPU: 1 PID: 109 Comm: jfsCommit Not tainted 6.6.0-rc3-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023\nCall Trace:\n \u003cTASK\u003e\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106\n panic+0x30f/0x770 kernel/panic.c:340\n check_panic_on_warn+0x82/0xa0 kernel/panic.c:236\n ubsan_epilogue lib/ubsan.c:223 [inline]\n __ubsan_handle_out_of_bounds+0x13c/0x150 lib/ubsan.c:348\n dbAdjTree+0x474/0x4f0 fs/jfs/jfs_dmap.c:2867\n dbJoin+0x210/0x2d0 fs/jfs/jfs_dmap.c:2834\n dbFreeBits+0x4eb/0xda0 fs/jfs/jfs_dmap.c:2331\n dbFreeDmap fs/jfs/jfs_dmap.c:2080 [inline]\n dbFree+0x343/0x650 fs/jfs/jfs_dmap.c:402\n txFreeMap+0x798/0xd50 fs/jfs/jfs_txnmgr.c:2534\n txUpdateMap+0x342/0x9e0\n txLazyCommit fs/jfs/jfs_txnmgr.c:2664 [inline]\n jfs_lazycommit+0x47a/0xb70 fs/jfs/jfs_txnmgr.c:2732\n kthread+0x2d3/0x370 kernel/kthread.c:388\n ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147\n ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304\n \u003c/TASK\u003e\nKernel Offset: disabled\nRebooting in 86400 seconds..\n\nThe issue is caused when the value of lp becomes greater than\nCTLTREESIZE which is the max size of stree. Adding a simple check\nsolves this issue.\n\nDave:\nAs the function returns a void, good error handling\nwould require a more intrusive code reorganization, so I modified\nOsama\u0027s patch at use WARN_ON_ONCE for lack of a cleaner option.\n\nThe patch is tested via syzbot.", "id": "GHSA-4rwf-mvg8-5p8w", "modified": "2024-12-12T18:30:50Z", "published": "2024-03-06T09:30:29Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52604" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/42f433785f108893de0dd5260bafb85d7d51db03" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/59342822276f753e49d27ef5eebffbba990572b9" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/6a44065dd604972ec1fbcccbdc4a70d266a89cdd" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/6fe8b702125aeee6ce83f20092a2341446704e7b" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/9862ec7ac1cbc6eb5ee4a045b5d5b8edbb2f7e68" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/98f9537fe61b8382b3cc5dd97347531698517c56" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/de34de6e57bbbc868e4fcf9e98c76b3587cabb0b" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/e3e95c6850661c77e6dab079d9b5374a618ebb15" }, { "type": "WEB", "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html" }, { "type": "WEB", "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html" } ], "schema_version": "1.4.0", "severity": [ { "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "type": "CVSS_V3" } ] }
Sightings
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