| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix race in concurrent f2fs_stop_gc_thread\n\nIn my test case, concurrent calls to f2fs shutdown report the following\nstack trace:\n\n Oops: general protection fault, probably for non-canonical address 0xc6cfff63bb5513fc: 0000 [#1] PREEMPT SMP PTI\n CPU: 0 UID: 0 PID: 678 Comm: f2fs_rep_shutdo Not tainted 6.12.0-rc5-next-20241029-g6fb2fa9805c5-dirty #85\n Call Trace:\n <TASK>\n ? show_regs+0x8b/0xa0\n ? __die_body+0x26/0xa0\n ? die_addr+0x54/0x90\n ? exc_general_protection+0x24b/0x5c0\n ? asm_exc_general_protection+0x26/0x30\n ? kthread_stop+0x46/0x390\n f2fs_stop_gc_thread+0x6c/0x110\n f2fs_do_shutdown+0x309/0x3a0\n f2fs_ioc_shutdown+0x150/0x1c0\n __f2fs_ioctl+0xffd/0x2ac0\n f2fs_ioctl+0x76/0xe0\n vfs_ioctl+0x23/0x60\n __x64_sys_ioctl+0xce/0xf0\n x64_sys_call+0x2b1b/0x4540\n do_syscall_64+0xa7/0x240\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nThe root cause is a race condition in f2fs_stop_gc_thread() called from\ndifferent f2fs shutdown paths:\n\n [CPU0] [CPU1]\n ---------------------- -----------------------\n f2fs_stop_gc_thread f2fs_stop_gc_thread\n gc_th = sbi->gc_thread\n gc_th = sbi->gc_thread\n kfree(gc_th)\n sbi->gc_thread = NULL\n < gc_th != NULL >\n kthread_stop(gc_th->f2fs_gc_task) //UAF\n\nThe commit c7f114d864ac (\"f2fs: fix to avoid use-after-free in\nf2fs_stop_gc_thread()\") attempted to fix this issue by using a read\nsemaphore to prevent races between shutdown and remount threads, but\nit fails to prevent all race conditions.\n\nFix it by converting to write lock of s_umount in f2fs_do_shutdown()." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "fs/f2fs/file.c" |
| ], |
| "versions": [ |
| { |
| "version": "7950e9ac638e84518fbdd5c930939ad46a1068c5", |
| "lessThan": "794fa8792d4eacac191f1cbcc2e81b7369e4662a", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "7950e9ac638e84518fbdd5c930939ad46a1068c5", |
| "lessThan": "60457ed6c67625c87861f96912b4179dc2293896", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "7950e9ac638e84518fbdd5c930939ad46a1068c5", |
| "lessThan": "c631207897a9b3d41167ceca58e07f8f94720e42", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "7950e9ac638e84518fbdd5c930939ad46a1068c5", |
| "lessThan": "7b0033dbc48340a1c1c3f12448ba17d6587ca092", |
| "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/f2fs/file.c" |
| ], |
| "versions": [ |
| { |
| "version": "4.16", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "4.16", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.6.64", |
| "lessThanOrEqual": "6.6.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.11.11", |
| "lessThanOrEqual": "6.11.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.12.2", |
| "lessThanOrEqual": "6.12.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.13", |
| "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": "4.16", |
| "versionEndExcluding": "6.6.64" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.16", |
| "versionEndExcluding": "6.11.11" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.16", |
| "versionEndExcluding": "6.12.2" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.16", |
| "versionEndExcluding": "6.13" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/794fa8792d4eacac191f1cbcc2e81b7369e4662a" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/60457ed6c67625c87861f96912b4179dc2293896" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/c631207897a9b3d41167ceca58e07f8f94720e42" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/7b0033dbc48340a1c1c3f12448ba17d6587ca092" |
| } |
| ], |
| "title": "f2fs: fix race in concurrent f2fs_stop_gc_thread", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2024-53218", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
