{"cve":"CVE-2022-49282","nvd":{"published":"2025-02-26T07:01:05.073","modified":"2026-06-17T05:17:35.490","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: quota: fix loop condition at f2fs_quota_sync()\n\ncnt should be passed to sb_has_quota_active() instead of type to check\nactive quota properly.\n\nMoreover, when the type is -1, the compiler with enough inline knowledge\ncan discard sb_has_quota_active() check altogether, causing a NULL pointer\ndereference at the following inode_lock(dqopt->files[cnt]):\n\n[    2.796010] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000a0\n[    2.796024] Mem abort info:\n[    2.796025]   ESR = 0x96000005\n[    2.796028]   EC = 0x25: DABT (current EL), IL = 32 bits\n[    2.796029]   SET = 0, FnV = 0\n[    2.796031]   EA = 0, S1PTW = 0\n[    2.796032] Data abort info:\n[    2.796034]   ISV = 0, ISS = 0x00000005\n[    2.796035]   CM = 0, WnR = 0\n[    2.796046] user pgtable: 4k pages, 39-bit VAs, pgdp=00000003370d1000\n[    2.796048] [00000000000000a0] pgd=0000000000000000, pud=0000000000000000\n[    2.796051] Internal error: Oops: 96000005 [#1] PREEMPT SMP\n[    2.796056] CPU: 7 PID: 640 Comm: f2fs_ckpt-259:7 Tainted: G S                5.4.179-arter97-r8-64666-g2f16e087f9d8 #1\n[    2.796057] Hardware name: Qualcomm Technologies, Inc. Lahaina MTP lemonadep (DT)\n[    2.796059] pstate: 80c00005 (Nzcv daif +PAN +UAO)\n[    2.796065] pc : down_write+0x28/0x70\n[    2.796070] lr : f2fs_quota_sync+0x100/0x294\n[    2.796071] sp : ffffffa3f48ffc30\n[    2.796073] x29: ffffffa3f48ffc30 x28: 0000000000000000\n[    2.796075] x27: ffffffa3f6d718b8 x26: ffffffa415fe9d80\n[    2.796077] x25: ffffffa3f7290048 x24: 0000000000000001\n[    2.796078] x23: 0000000000000000 x22: ffffffa3f7290000\n[    2.796080] x21: ffffffa3f72904a0 x20: ffffffa3f7290110\n[    2.796081] x19: ffffffa3f77a9800 x18: ffffffc020aae038\n[    2.796083] x17: ffffffa40e38e040 x16: ffffffa40e38e6d0\n[    2.796085] x15: ffffffa40e38e6cc x14: ffffffa40e38e6d0\n[    2.796086] x13: 00000000000004f6 x12: 00162c44ff493000\n[    2.796088] x11: 0000000000000400 x10: ffffffa40e38c948\n[    2.796090] x9 : 0000000000000000 x8 : 00000000000000a0\n[    2.796091] x7 : 0000000000000000 x6 : 0000d1060f00002a\n[    2.796093] x5 : ffffffa3f48ff718 x4 : 000000000000000d\n[    2.796094] x3 : 00000000060c0000 x2 : 0000000000000001\n[    2.796096] x1 : 0000000000000000 x0 : 00000000000000a0\n[    2.796098] Call trace:\n[    2.796100]  down_write+0x28/0x70\n[    2.796102]  f2fs_quota_sync+0x100/0x294\n[    2.796104]  block_operations+0x120/0x204\n[    2.796106]  f2fs_write_checkpoint+0x11c/0x520\n[    2.796107]  __checkpoint_and_complete_reqs+0x7c/0xd34\n[    2.796109]  issue_checkpoint_thread+0x6c/0xb8\n[    2.796112]  kthread+0x138/0x414\n[    2.796114]  ret_from_fork+0x10/0x18\n[    2.796117] Code: aa0803e0 aa1f03e1 52800022 aa0103e9 (c8e97d02)\n[    2.796120] ---[ end trace 96e942e8eb6a0b53 ]---\n[    2.800116] Kernel panic - not syncing: Fatal exception\n[    2.800120] SMP: stopping secondary CPUs","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-476"],"references":["https://git.kernel.org/stable/c/680af5b824a52faa819167628665804a14f0e0df","https://git.kernel.org/stable/c/724469814d805820cd37ea789769dba94123ff1a","https://git.kernel.org/stable/c/e58ee6bd939b773675240f5d0f5b88a367c037c4","https://git.kernel.org/stable/c/e9ebf1e8fc50b6a9336f9aea1082d7845e568d0e","https://git.kernel.org/stable/c/f1d5946d47c0827bae39e1537959ce8d6f0224c5"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:59:48.811064707+00:00"},"epss":{"cve":"CVE-2022-49282","score":0.00262,"percentile":0.18083,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}