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cvelist/2024/49xxx/CVE-2024-49903.json
CVE Team 971b3446a2
"-Synchronized-Data."
2024-11-19 02:00:48 +00:00

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{
"data_version": "4.0",
"data_type": "CVE",
"data_format": "MITRE",
"CVE_data_meta": {
"ID": "CVE-2024-49903",
"ASSIGNER": "cve@kernel.org",
"STATE": "PUBLIC"
},
"description": {
"description_data": [
{
"lang": "eng",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\njfs: Fix uaf in dbFreeBits\n\n[syzbot reported]\n==================================================================\nBUG: KASAN: slab-use-after-free in __mutex_lock_common kernel/locking/mutex.c:587 [inline]\nBUG: KASAN: slab-use-after-free in __mutex_lock+0xfe/0xd70 kernel/locking/mutex.c:752\nRead of size 8 at addr ffff8880229254b0 by task syz-executor357/5216\n\nCPU: 0 UID: 0 PID: 5216 Comm: syz-executor357 Not tainted 6.11.0-rc3-syzkaller-00156-gd7a5aa4b3c00 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024\nCall Trace:\n <TASK>\n __dump_stack lib/dump_stack.c:93 [inline]\n dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119\n print_address_description mm/kasan/report.c:377 [inline]\n print_report+0x169/0x550 mm/kasan/report.c:488\n kasan_report+0x143/0x180 mm/kasan/report.c:601\n __mutex_lock_common kernel/locking/mutex.c:587 [inline]\n __mutex_lock+0xfe/0xd70 kernel/locking/mutex.c:752\n dbFreeBits+0x7ea/0xd90 fs/jfs/jfs_dmap.c:2390\n dbFreeDmap fs/jfs/jfs_dmap.c:2089 [inline]\n dbFree+0x35b/0x680 fs/jfs/jfs_dmap.c:409\n dbDiscardAG+0x8a9/0xa20 fs/jfs/jfs_dmap.c:1650\n jfs_ioc_trim+0x433/0x670 fs/jfs/jfs_discard.c:100\n jfs_ioctl+0x2d0/0x3e0 fs/jfs/ioctl.c:131\n vfs_ioctl fs/ioctl.c:51 [inline]\n __do_sys_ioctl fs/ioctl.c:907 [inline]\n __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:893\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\n\nFreed by task 5218:\n kasan_save_stack mm/kasan/common.c:47 [inline]\n kasan_save_track+0x3f/0x80 mm/kasan/common.c:68\n kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579\n poison_slab_object+0xe0/0x150 mm/kasan/common.c:240\n __kasan_slab_free+0x37/0x60 mm/kasan/common.c:256\n kasan_slab_free include/linux/kasan.h:184 [inline]\n slab_free_hook mm/slub.c:2252 [inline]\n slab_free mm/slub.c:4473 [inline]\n kfree+0x149/0x360 mm/slub.c:4594\n dbUnmount+0x11d/0x190 fs/jfs/jfs_dmap.c:278\n jfs_mount_rw+0x4ac/0x6a0 fs/jfs/jfs_mount.c:247\n jfs_remount+0x3d1/0x6b0 fs/jfs/super.c:454\n reconfigure_super+0x445/0x880 fs/super.c:1083\n vfs_cmd_reconfigure fs/fsopen.c:263 [inline]\n vfs_fsconfig_locked fs/fsopen.c:292 [inline]\n __do_sys_fsconfig fs/fsopen.c:473 [inline]\n __se_sys_fsconfig+0xb6e/0xf80 fs/fsopen.c:345\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\n[Analysis]\nThere are two paths (dbUnmount and jfs_ioc_trim) that generate race\ncondition when accessing bmap, which leads to the occurrence of uaf.\n\nUse the lock s_umount to synchronize them, in order to avoid uaf caused\nby race condition."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"affects": {
"vendor": {
"vendor_data": [
{
"vendor_name": "Linux",
"product": {
"product_data": [
{
"product_name": "Linux",
"version": {
"version_data": [
{
"version_affected": "<",
"version_name": "1da177e4c3f4",
"version_value": "4ac58f773493"
},
{
"version_value": "not down converted",
"x_cve_json_5_version_data": {
"versions": [
{
"version": "4.19.323",
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.4.285",
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.10.227",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.168",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.113",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6.55",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.10.14",
"lessThanOrEqual": "6.10.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.11.3",
"lessThanOrEqual": "6.11.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.12",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
],
"defaultStatus": "affected"
}
}
]
}
}
]
}
}
]
}
},
"references": {
"reference_data": [
{
"url": "https://git.kernel.org/stable/c/4ac58f7734937f3249da734ede946dfb3b1af5e4",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/4ac58f7734937f3249da734ede946dfb3b1af5e4"
},
{
"url": "https://git.kernel.org/stable/c/3126ccde51f51b0648c8cdccaf916e8bd062e972",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/3126ccde51f51b0648c8cdccaf916e8bd062e972"
},
{
"url": "https://git.kernel.org/stable/c/fd026b6b6758d5569705c02540b40f3bbf822b9a",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/fd026b6b6758d5569705c02540b40f3bbf822b9a"
},
{
"url": "https://git.kernel.org/stable/c/e7ae14f7ee76c6ef5a48aebab1a278ad78f42619",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/e7ae14f7ee76c6ef5a48aebab1a278ad78f42619"
},
{
"url": "https://git.kernel.org/stable/c/0c238da83f56bb895cab1e5851d034ac45b158d1",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/0c238da83f56bb895cab1e5851d034ac45b158d1"
},
{
"url": "https://git.kernel.org/stable/c/4218b31ecc7af7e191768d32e32ed4386d8f9b76",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/4218b31ecc7af7e191768d32e32ed4386d8f9b76"
},
{
"url": "https://git.kernel.org/stable/c/a9603a6f75df2fd8125cd208c98cfaa0fe3f7505",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/a9603a6f75df2fd8125cd208c98cfaa0fe3f7505"
},
{
"url": "https://git.kernel.org/stable/c/95accb7183badca387f7a8d19a2475cf3089f148",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/95accb7183badca387f7a8d19a2475cf3089f148"
},
{
"url": "https://git.kernel.org/stable/c/d6c1b3599b2feb5c7291f5ac3a36e5fa7cedb234",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/d6c1b3599b2feb5c7291f5ac3a36e5fa7cedb234"
}
]
},
"generator": {
"engine": "bippy-8e903de6a542"
}
}
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