jfs: Fix uaf in dbFreeBits
In the Linux kernel, the following vulnerability has been resolved: jfs: Fix uaf in dbFreeBits [syzbot reported] ================================================================== BUG: KASAN: slab-use-after-free in __mutex_lock_common kernel/locking/mutex.c:587 [inline] BUG: KASAN: slab-use-after-free in __mutex_lock+0xfe/0xd70 kernel/locking/mutex.c:752 Read of size 8 at addr ffff8880229254b0 by task syz-executor357/5216 CPU: 0 UID: 0 PID: 5216 Comm: syz-executor357 Not tainted 6.11.0-rc3-syzkaller-00156-gd7a5aa4b3c00 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 Call Trace: __dump_stack lib/dump_stack.c:93 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119 print_address_description mm/kasan/report.c:377 [inline] print_report+0x169/0x550 mm/kasan/report.c:488 kasan_report+0x143/0x180 mm/kasan/report.c:601 __mutex_lock_common kernel/locking/mutex.c:587 [inline] __mutex_lock+0xfe/0xd70 kernel/locking/mutex.c:752 dbFreeBits+0x7ea/0xd90 fs/jfs/jfs_dmap.c:2390 dbFreeDmap fs/jfs/jfs_dmap.c:2089 [inline] dbFree+0x35b/0x680 fs/jfs/jfs_dmap.c:409 dbDiscardAG+0x8a9/0xa20 fs/jfs/jfs_dmap.c:1650 jfs_ioc_trim+0x433/0x670 fs/jfs/jfs_discard.c:100 jfs_ioctl+0x2d0/0x3e0 fs/jfs/ioctl.c:131 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 Freed by task 5218: kasan_save_stack m
CVE-2024-49903
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2024-49903
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "b40c2e665cd552eae5fbdbb878bc29a34357668e",
"lessThan": "4ac58f7734937f3249da734ede946dfb3b1af5e4",
"versionType": "git"
},
{
"status": "affected",
"version": "b40c2e665cd552eae5fbdbb878bc29a34357668e",
"lessThan": "3126ccde51f51b0648c8cdccaf916e8bd062e972",
"versionType": "git"
},
{
"status": "affected",
"version": "b40c2e665cd552eae5fbdbb878bc29a34357668e",
"lessThan": "fd026b6b6758d5569705c02540b40f3bbf822b9a",
"versionType": "git"
},
{
"status": "affected",
"version": "b40c2e665cd552eae5fbdbb878bc29a34357668e",
"lessThan": "e7ae14f7ee76c6ef5a48aebab1a278ad78f42619",
"versionType": "git"
},
{
"status": "affected",
"version": "b40c2e665cd552eae5fbdbb878bc29a34357668e",
"lessThan": "0c238da83f56bb895cab1e5851d034ac45b158d1",
"versionType": "git"
},
{
"status": "affected",
"version": "b40c2e665cd552eae5fbdbb878bc29a34357668e",
"lessThan": "4218b31ecc7af7e191768d32e32ed4386d8f9b76",
"versionType": "git"
},
{
"status": "affected",
"version": "b40c2e665cd552eae5fbdbb878bc29a34357668e",
"lessThan": "a9603a6f75df2fd8125cd208c98cfaa0fe3f7505",
"versionType": "git"
},
{
"status": "affected",
"version": "b40c2e665cd552eae5fbdbb878bc29a34357668e",
"lessThan": "95accb7183badca387f7a8d19a2475cf3089f148",
"versionType": "git"
},
{
"status": "affected",
"version": "b40c2e665cd552eae5fbdbb878bc29a34357668e",
"lessThan": "d6c1b3599b2feb5c7291f5ac3a36e5fa7cedb234",
"versionType": "git"
}
],
"programFiles": [
"fs/jfs/jfs_discard.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3.7"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "3.7",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "4.19.323",
"versionType": "semver",
"lessThanOrEqual": "4.19.*"
},
{
"status": "unaffected",
"version": "5.4.285",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
},
{
"status": "unaffected",
"version": "5.10.227",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.168",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.113",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.55",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.10.14",
"versionType": "semver",
"lessThanOrEqual": "6.10.*"
},
{
"status": "unaffected",
"version": "6.11.3",
"versionType": "semver",
"lessThanOrEqual": "6.11.*"
},
{
"status": "unaffected",
"version": "6.12",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/jfs/jfs_discard.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2024-49903
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #26752 · Revision 1
- Added to Heist Feed
- Publisher date