program: getresuid(&(0x7f0000000200), &(0x7f0000000340), &(0x7f0000000380)) syz_mount_image$vfat(&(0x7f0000000000), &(0x7f00000000c0)='./file0\x00', 0x0, &(0x7f0000000b00)={[{@numtail}, {@fat=@dmask={'dmask', 0x3d, 0x7}}, {@iocharset={'iocharset', 0x3d, 'utf8'}}, {@shortname_lower}, {@shortname_mixed}, {@shortname_win95}, {@shortname_lower}, {@fat=@discard}, {@uni_xlate}, {@uni_xlate}, {@numtail}, {@shortname_win95}, {@shortname_win95}, {@shortname_lower}, {@fat=@usefree}, {@utf8}, {@shortname_mixed}, {@iocharset={'iocharset', 0x3d, 'koi8-ru'}}, {@numtail}]}, 0x0, 0x2b1, &(0x7f0000000840)="$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") r0 = bpf$PROG_LOAD(0x5, &(0x7f0000000440)={0x4, 0xe, &(0x7f0000000800)=ANY=[@ANYBLOB="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"], &(0x7f0000000300)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x8, &(0x7f0000000000), 0x8, 0x10, &(0x7f0000000100), 0x10}, 0x28) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f00000002c0)={r0, 0x0, 0xf, 0x0, &(0x7f0000000280)="e0b9d5a2a00a3c6ffda2e386112192", 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4}, 0x50) mkdir(&(0x7f0000000000)='./cgroup/../file0\x00', 0x0) syz_mount_image$vfat(&(0x7f0000000040), &(0x7f0000000000)='./file0\x00', 0x101c08a, &(0x7f0000000100)=ANY=[@ANYBLOB='shortname=mixed\futf8=1,fmask=00000000000000000000066,uni_xlate=1,uni_xlate=0,fmask=00000000000000000005645,shortname=lower,uni_xla=0,utf8=1,check=strict,utf8=0,allow_utime=00000000000000000000007,rodir,flush,nfs=nostave_ro,rodir,cMheck=relaxed,\x00\x00'], 0x6, 0x2b8, &(0x7f0000000640)="$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") r1 = openat(0xffffffffffffff9c, &(0x7f0000000000)='.\x00', 0x0, 0x0) open_by_handle_at(r1, &(0x7f0000000240)=@reiserfs_2={0x3d, 0x71}, 0x0) r2 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0) r3 = openat$cgroup_int(r2, &(0x7f0000000600)='cpu.max\x00', 0x2, 0x0) sendfile(r3, r3, 0x0, 0xffffffff) r4 = open(&(0x7f0000000000)='./bus\x00', 0x60142, 0x0) prctl$PR_SET_MM(0x23, 0x3, &(0x7f0000005000/0x2000)=nil) prctl$PR_SET_MM(0x23, 0xa, &(0x7f0000ff9000/0x4000)=nil) prctl$PR_SET_MM(0x23, 0xb, &(0x7f0000ffc000/0x4000)=nil) r5 = open(&(0x7f0000000080)='./bus\x00', 0x185102, 0x0) write$dsp(r4, &(0x7f0000000100)='n', 0x1) r6 = syz_open_procfs(0x0, &(0x7f00000001c0)='maps\x00') ioctl$KVM_SET_USER_MEMORY_REGION(r6, 0xc0686611, &(0x7f0000000180)={0x67, 0x0, 0x18, 0x2000, &(0x7f0000ffd000/0x2000)=nil}) r7 = socket(0x10, 0x3, 0x6) r8 = socket(0x10, 0x3, 0x0) ioctl$ifreq_SIOCGIFINDEX_team(r7, 0x8933, &(0x7f0000000040)={'team0\x00', 0x0}) sendmsg$nl_route_sched(r8, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000240)=@newqdisc={0x90, 0x24, 0xf0b, 0x0, 0x0, {0x0, 0x0, 0x0, r9, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_mqprio={{0xb}, {0x51, 0x2, {{0x2, [], 0x0, [0x4, 0x2, 0xfffe, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3dc], [0x0, 0x4]}}}}, @TCA_RATE={0x6}]}, 0x90}}, 0x20000000) sendfile(r4, r5, 0x0, 0x1000000201005) [ 86.141854][ T4665] Bluetooth: hci0: command tx timeout [ 86.205146][ T5326] loop0: detected capacity change from 0 to 256 [ 86.218375][ T5326] vfat: Unknown parameter 'utf' [ 86.279286][ T5326] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 86.282854][ T5326] #PF: supervisor instruction fetch in kernel mode [ 86.285588][ T5326] #PF: error_code(0x0010) - not-present page [ 86.288368][ T5326] PGD 0 P4D 0 [ 86.289998][ T5326] Oops: Oops: 0010 [#1] SMP KASAN NOPTI [ 86.292285][ T5326] CPU: 0 UID: 0 PID: 5326 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 86.296512][ T5326] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 86.301793][ T5326] RIP: 0010:0x0 [ 86.303402][ T5326] Code: Unable to access opcode bytes at 0xffffffffffffffd6. [ 86.306617][ T5326] RSP: 0018:ffffc9000f537958 EFLAGS: 00010283 [ 86.309316][ T5326] RAX: ffffffff81fa8bb4 RBX: 1ffffd40000cfaf8 RCX: 0000000000100000 [ 86.313020][ T5326] RDX: ffffc9000dc7a000 RSI: ffffea000067d7c0 RDI: ffff888011df6380 [ 86.316696][ T5326] RBP: ffffc9000f537a10 R08: ffffea000067d7c7 R09: 1ffffd40000cfaf8 [ 86.320249][ T5326] R10: dffffc0000000000 R11: 0000000000000000 R12: 0000000000000000 [ 86.323849][ T5326] R13: ffffea000067d7c8 R14: ffffea000067d7c0 R15: 1ffffd40000cfaf9 [ 86.327758][ T5326] FS: 00007fd7277f56c0(0000) GS:ffff88808d72f000(0000) knlGS:0000000000000000 [ 86.331588][ T5326] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 86.334489][ T5326] CR2: ffffffffffffffd6 CR3: 000000001f21e000 CR4: 0000000000352ef0 [ 86.337915][ T5326] Call Trace: [ 86.339386][ T5326] [ 86.340712][ T5326] filemap_read_folio+0x117/0x380 [ 86.343068][ T5326] ? __pfx_filemap_read_folio+0x10/0x10 [ 86.345761][ T5326] ? filemap_add_folio+0x35f/0x540 [ 86.348354][ T5326] do_read_cache_folio+0x350/0x590 [ 86.351001][ T5326] freader_get_folio+0x3c4/0x830 [ 86.353385][ T5326] freader_fetch+0xa3/0x5d0 [ 86.355422][ T5326] __build_id_parse+0x133/0x7d0 [ 86.357630][ T5326] ? __pfx___build_id_parse+0x10/0x10 [ 86.360101][ T5326] procfs_procmap_ioctl+0x76f/0xce0 [ 86.362522][ T5326] ? __pfx_procfs_procmap_ioctl+0x10/0x10 [ 86.365440][ T5326] ? __fget_files+0x3a0/0x420 [ 86.367499][ T5326] ? __fget_files+0x2a/0x420 [ 86.369694][ T5326] ? bpf_lsm_file_ioctl+0x9/0x20 [ 86.371786][ T5326] ? __pfx_procfs_procmap_ioctl+0x10/0x10 [ 86.374381][ T5326] __se_sys_ioctl+0xfc/0x170 [ 86.376578][ T5326] do_syscall_64+0xfa/0xfa0 [ 86.378623][ T5326] ? lockdep_hardirqs_on+0x9c/0x150 [ 86.381245][ T5326] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.383827][ T5326] ? clear_bhb_loop+0x60/0xb0 [ 86.386224][ T5326] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.389068][ T5326] RIP: 0033:0x7fd72b38f749 [ 86.391303][ T5326] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 86.399756][ T5326] RSP: 002b:00007fd7277f5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 86.403540][ T5326] RAX: ffffffffffffffda RBX: 00007fd72b5e5fa0 RCX: 00007fd72b38f749 [ 86.407337][ T5326] RDX: 0000200000000180 RSI: 00000000c0686611 RDI: 0000000000000008 [ 86.411052][ T5326] RBP: 00007fd72b413f91 R08: 0000000000000000 R09: 0000000000000000 [ 86.414751][ T5326] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 86.418194][ T5326] R13: 00007fd72b5e6038 R14: 00007fd72b5e5fa0 R15: 00007fff731d7cd8 [ 86.421626][ T5326] [ 86.423074][ T5326] Modules linked in: [ 86.424806][ T5326] CR2: 0000000000000000 [ 86.426693][ T5326] ---[ end trace 0000000000000000 ]--- [ 86.429187][ T5326] RIP: 0010:0x0 [ 86.430885][ T5326] Code: Unable to access opcode bytes at 0xffffffffffffffd6. [ 86.434341][ T5326] RSP: 0018:ffffc9000f537958 EFLAGS: 00010283 [ 86.436756][ T5326] RAX: ffffffff81fa8bb4 RBX: 1ffffd40000cfaf8 RCX: 0000000000100000 [ 86.440147][ T5326] RDX: ffffc9000dc7a000 RSI: ffffea000067d7c0 RDI: ffff888011df6380 [ 86.443652][ T5326] RBP: ffffc9000f537a10 R08: ffffea000067d7c7 R09: 1ffffd40000cfaf8 [ 86.447474][ T5326] R10: dffffc0000000000 R11: 0000000000000000 R12: 0000000000000000 [ 86.451444][ T5326] R13: ffffea000067d7c8 R14: ffffea000067d7c0 R15: 1ffffd40000cfaf9 [ 86.455375][ T5326] FS: 00007fd7277f56c0(0000) GS:ffff88808d72f000(0000) knlGS:0000000000000000 [ 86.459270][ T5326] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 86.462333][ T5326] CR2: ffffffffffffffd6 CR3: 000000001f21e000 CR4: 0000000000352ef0 [ 86.465962][ T5326] Kernel panic - not syncing: Fatal exception [ 86.468903][ T5326] Kernel Offset: disabled [ 86.470821][ T5326] Rebooting in 86400 seconds..